TYPHOID FEVER.

BY JAMES H. HUTCHINSON, M.D.


DEFINITION.—An endemic infectious fever, usually lasting between three and four weeks, and associated with constant lesions of the solitary and agminate glands of the ileum, and with enlargement of the spleen and mesenteric glands. Its invasion is usually gradual and often insidious. Sometimes the only symptoms present in the beginning are a feeling of lassitude, some gastric derangement, and a slight elevation of temperature; at others there are slight rigors or chilly sensations, headache, epistaxis, diarrhoea, and pain in the abdomen. The principal symptoms of the fully-formed disease are a febrile movement possessing certain characters, headache passing into delirium and stupor, diarrhoea associated with ochrey-yellow stools, tympanites, pain and gurgling in the right iliac fossa, a red and furred tongue, which later often becomes dry, brown, and fissured; a frequent pulse; an eruption of rose-colored spots, occurring about the seventh or eighth day, slightly elevated above the surface, disappearing under pressure, and coming out in successive crops, each spot lasting about three days; prostration not marked in the beginning, but rapidly increasing; and occasionally deafness, sweats, and intestinal hemorrhages. When recovery takes place, the convalescence is usually tedious, and may sometimes be protracted by the occurrence of one or more relapses.

SYNONYMS.—The following are a few of the many names which have been given to the disease at different times. Most of them have ceased to be applied to it, and only three or four of them are at present in general use: Febris Mesenterica, 1696; Slow Nervous Fever, 1735; Febricula or Little Fever, 1740; Typhus Nervosus, 1760; Miliary Fever, 1760; Typhus Mitior, 1769; Synochus, 1769; Common Continued Fever, 1816; Gastro-Enterite, 1816; Entero-Mesenteric Fever, 1820; Abdominal and Darm Typhus, 1820; Typhus Fever of New England, 1824; Dothienterie, 1826; Enterite-folliculeuse, 1835; Infantile Remittent Fever, 1836; Enterite Septicémique, 1841; Mucous Fever, 1844; Enteric Fever, 1846; Intestinal Fever, 1856; Ileo-Typhus, 1857; Pythogenic Fever, 1858; Mountain Fever, 1870.

NAME.—It has been objected to the name "typhoid fever" as a designation for this disease that it tends to perpetuate among the laity the mistaken impression that typhoid fever is only a modified typhus fever, and also that the word typhoid has been generally applied to a condition of system which is common to a great many different diseases, and which is not of necessity present in this. In spite of these objections, and although it must be admitted that they are not without force, I prefer to retain the name typhoid fever, and for the following reasons: 1st. It was the name given to the disease by Louis, to whom we owe the first full and accurate description of it. 2d. It is the name by which it is best known to the profession, not only in this country but abroad. 3d. No other name has been proposed for it which is not quite as much open to criticism. Thus the term enteric fever, originally suggested by the late George B. Wood, and adopted by the London College of Physicians in its Nomenclature of Diseases, is objectionable because it brings into undue prominence the intestinal lesions and implies that they are the cause of the fever. The same objection may be urged against the name "intestinal fever," proposed by Budd. The name "pythogenic fever" rests upon a theory of the disease which has never been proven, and is regarded by most observers as untenable. Under these circumstances even the influence of its distinguished proposer, the late Dr. Murchison, has been insufficient to secure its adoption by the profession at large.

HISTORY.—Certain passages in the writings of Hippocrates have been appealed to by Murchison and other physicians in support of the opinion that typhoid fever was a disease of at least occasional occurrence in ancient times; but, although from the nature of its causes it is probable that it has occurred in all ages and wherever men have congregated in towns and villages, the descriptions given by the Father of Medicine in the passages alluded to are not sufficiently full to render it at all certain that typhoid fever had ever come under his observation. Indeed, there is no author of an earlier date than Spigelius1 whose writings furnish any positive evidence that he ever met with the disease. Spigelius, however, in spite of the doubt thrown upon his observation by Hirsch,2 would seem to have had opportunities for examining the bodies of those who had died of it, since he gives an account of several autopsies, in which he says that the small intestine was inflamed and that that part of it next to the cæcum and colon was frequently sphacelated. Panarolus3 also says that the intestines had the appearance of being cauterized ("apparebant tanquam exusta") in some cases observed by him in Rome a little later in the same century. Willis4 would certainly appear to have been familiar with two forms of fever, which, from the description he gives of them, could have been nothing else but typhoid and typhus fevers. Sydenham5 also described a fever in which the prominent symptoms were diarrhoea, vomiting, delirium, a tendency to coma, and epistaxis, and which was distinguishable from the febris pestilens by the absence of a petechial eruption. Baglivi6 of Rome in the latter part of the seventeenth century described the hæmitritæus of previous writers under the title of febris mesenterica, and maintained that it was always accompanied by and dependent on inflammation of the intestines and enlargement of the mesenteric glands. A similar observation was made soon after by Hoffmann,7 and by Lancisi8 in 1718. The latter seems to have fully recognized the characteristics of the eruption, for he says that it consisted of "elevated papules which disappeared completely on pressure." In 1759, Huxham described, under the title "slow, nervous fever," a disease which there can be no doubt was typhoid fever. He moreover pointed out very clearly the distinctions between this disease and another to which he gave the name of "putrid, malignant, petechial fever," and which was unquestionably typhus. Sir Richard Manningham9 also described typhoid fever under the title of "febricula, or little fever." In the preface of his work he calls attention to its insidious origin, and to the fact that its gravity was often underrated at its commencement, "till, at length, more conspicuous and very terrible symptoms arise, and then the Physician is sent for in the greatest hurry, and happy for the Patient if the Symptoms, which are most obvious, do not, at this Time, mislead the Physician to the Neglect of the little latent Fever, the true Cause of these violent Symptoms." About the same time Morgagni10 described certain post-mortem examinations in which the lesions of the intestines were evidently those of typhoid fever. Other authors, whose works bear evidence that they were familiar with the symptoms or lesions of typhoid fever, are Riedel, Roederer and Wagler, Stoll, Rutty, Sarcone, Pepe, Fasano, Mayer, Wrenholt, Sutton, Bateman, Muir, Edmonstone, Prost, Petit and Serres, Cruveilhier, Lerminier, and Andral.

1 De Febre Semitertiana, Frankf., 1624; Op. Om., Amsterdam, 1745. Quoted by Murchison.

2 Handbuch der Historisch-Geographischen Pathologie, von Dr. August Hirsch, Stuttgart, 1881.

3 Observat. Med. Pentecostæ; Romæ, 1652. Quoted by Murchison.

4 Dr. Willis's Practice of Physick, translated by Samuel Pordage, London, 1684.

5 The Works of Thomas Sydenham, M.D., on Acute and Chronic Diseases, with a Variety of Annotations by George Wallis, M.D., London, 1788.

6 Opera Omnia Medico-practica et Anatomica, Paris, 1788.

7 Opera Omnia Physico-Medico, 1699. Quoted by Murchison.

8 Opera Omnia, Geneva, 1718.

9 The Symptoms, Nature, etc. of the Febricula or Little Fever, London, 1746.

10 Quoted by Hirsch.

To Bretonneau11 of Tours appears to belong the credit of having first distinctly pointed out the association between certain symptoms and the lesions of the solitary and agminated glands of the ileum. He regarded the disease of the intestinal glands as inflammatory, and therefore gave to it the name "dothienenterie" or "dothienenterite" (from [Greek: dothiên], a tumor, and [Greek: enteron], intestine), but, unlike Prost, fully recognized the fact that there was no necessary relation between the extent of the intestinal lesions and the gravity of the febrile symptoms. Hirsch, however, claims this honor for Pommer, whose little work on Sporadic Typhus he thinks has not received the consideration its merits deserve. Louis, to whom for his careful study of typhoid fever we owe a large debt of gratitude, was also fully aware of the lesions of the intestinal glands which occur in this disease.

11 Quoted by Trousseau, Archives Générales, 1826.

The progress in pathology which observers were making was temporarily impeded about this time by the fact that while typhoid fever was of frequent occurrence in Paris, typhus fever was comparatively rarely met with and had not been epidemic there for several years. Bretonneau, Louis,12 Chomel, and indeed the greater number of contemporary French physicians, therefore fell into the error of supposing that the fever which was then common in England was identical with that which they were describing, while the English physicians of the period, with but few exceptions, contended with equal strenuousness that there was but one form of continued fever, and that this was very seldom associated with disease of the intestines. In the second edition of his work Louis abandoned his former opinion, and admitted that the typhus fever of the English was a very different disease from that which formed the subject of his treatise; but the confusion which existed in England in regard to this disease was not completely dispelled until the appearance in 1849 and the following two years of several papers on this subject by Sir William Jenner,13 in which it was conclusively demonstrated that typhoid and typhus fevers were separate and distinct diseases. In Germany, however, the non-identity of these diseases was recognized as early as 1810. Murchison says that the names by which they are still generally known in that country, typhus exanthematicus and typhus abdominalis, were given to them not long after.

12 Researches Anatomiques, Pathologiques et Therapeutiques sur la Maladie connue sur les Noms de gastro-entente, etc., par P. C. A. Louis, Paris, 1829.

13 Med. Chir. Trans., vol. xxxiii.; Edinburgh Monthly Jour. of Med. Sci., vols. ix. and x., 1849-50; and Med. Times, vols. xx., xxi., xxii., xxxiii., 1849-51.

The contributions made by American physicians to the knowledge of typhoid fever have been both numerous and important. In 1824 it was described by Nathan Smith14 under the name of typhus fever of New England, and in 1833, E. Hale, Jr.,15 of Boston, published in the Medical Magazine for December an account of three dissections of persons considered by him to have died of the disease. In reference to these cases, Bartlett16 says that if the diagnosis could be looked upon as certain and positive they would constitute the first published examples of intestinal lesion in New England. In February, 1835, William S. Gerhard of Philadelphia, who was then under the impression that the two diseases were identical, reported two cases under the name of typhus fever, the symptoms and post-mortem appearances of which he showed differed in no respect from those he had been accustomed to see in the cases of typhoid fever he had observed with Louis during his studies in Paris. The year after Gerhard had, however, the opportunity of observing an epidemic of true typhus fever, and was at once struck with the difference between the symptoms of the cases which then fell under his care and of those he had seen in Paris. In an admirable paper which appeared in the numbers of the American Journal of the Medical Sciences for February and August, 1837, he points out very clearly the differential diagnosis between the two diseases. He particularly insisted on the marked difference between the petechial eruption of typhus and the rose-colored eruption of typhoid fever. He showed that the latter disease was invariably associated with enlargement and ulceration of Peyer's patches and with enlargement of the mesenteric glands, and that these conditions were never presented in the former. He also fully recognized the fact that typhus fever was eminently contagious, while, on the other hand, he was fully aware that typhoid fever was not contagious under ordinary circumstances, "although in some epidemics," he says, "we have strong reason to believe it becomes so." The appearance of this paper marks an epoch in the history of typhoid fever. Murchison, when speaking of it, says that to Gerhard, and Pennock (who was associated with Gerhard in his observations) certainly belongs the credit of first clearly establishing the most important points of distinction between this disease and typhus fever, and M. Valleix alludes to it in terms equally complimentary. It is undoubtedly owing to it, more than to any other cause, that the differential diagnosis of these two diseases was perfectly understood by the great body of the profession in this country long before the question of the relation which they bore to each other was definitely settled in Great Britain,17 or even in France.

14 Medical and Surgical Memoirs, Baltimore, 1831.

15 Observations on the Typhoid Fever of New England, Boston, 1839.

16 The History, Diagnosis, and Treatment of the Fevers of the United States, 1842.

17 The honor of having first clearly pointed out the distinguishing characters of typhoid and typhus fevers has been recently claimed for Sir William Jenner, but, as we have seen above, his papers on this subject were not published until thirteen years after that of Gerhard.

Bartlett gave in the Medical Magazine, June, 1835, a short account of the entero-mesenteric alterations in five cases of unequivocal typhoid fever, which alterations, he said, corresponded exactly to those described by Louis. In the same year, James Jackson, Jr., of Boston, published an account of the intestinal lesions observed by him in cases during the years 1830, 1833, and 1834; and again in a Report of Typhoid Fever, communicated to the Massachusetts Medical Society in June, 1838, says that the alterations of Peyer's patches had been noticed at the Massachusetts General Hospital previous to 1833 in cases which were carefully examined. In 1840, Shattuck of Boston published in the American Medical Examiner an account of some cases of typhoid and typhus fever which he had observed at the London Fever Hospital during the previous year. In this paper, which had been already communicated to the Medical Society of Observation of Paris, and which had unquestionably exerted a marked influence upon medical thought there, he pointed out very fully the distinguishing characteristics of each disease. In 1842, Dr. Bartlett issued the first edition of his work on The History, Diagnosis, and Treatment of the Fevers of the United States, which contains very full descriptions of both of these diseases, and of the means by which they may be distinguished from each other. Since then there have been numerous additions in this country to the literature of typhoid fever, among the most important of which may be mentioned the chapter on the disease in the respective works on The Practice of Medicine by Professors Wood and Flint, the article on typho-malarial fever in the Transactions of the International Medical Congress of 1876, and the article in the work on The Continued Fevers, by James C. Wilson. Abroad, the medical press has been no less active. Within the last twenty or thirty years Jaccoud and Trousseau in France, Liebermeister and Hirsch in Germany, and Tweedie and Cayley in England, have all made important additions to our knowledge of the disease. To the late Dr. Murchison18 of London, however, is justly due the honor of having produced the best treatise on typhoid fever in any language, and the writer cheerfully acknowledges that he has drawn largely upon it for the material of the present article.

18 A Treatise on Continued Fevers, London, 1873.

GEOGRAPHICAL DISTRIBUTION.—Although it will be generally admitted that the conditions of civilization favor the occurrence and extension of typhoid fever, yet there is abundant evidence that they are not absolutely necessary to its production, as there is no country, whether civilized or not, of the diseases of which we have any knowledge, in which it has not occasionally made its appearance, being met with in every variety of climate. It is endemic in North America, attacking alike the inhabitants of Greenland and British America and those of Mexico. In our own country it prevails from time to time in every State of the Union, committing its ravages as well among the rocks and hills of New England as in the more fertile valleys of the West and South. In many of the newly-settled portions of our country malarial fevers are, as is well known, exceedingly rife. In proportion, however, as towns and cities spring up, and as the land is properly drained, they diminish in frequency, and are gradually replaced, to a certain extent at least, by typhoid fever; but the influences which produced them retain for a long time enough of power to stamp their impress upon all other diseases. In large portions of the Western and Southern States typhoid fever is therefore rarely uncomplicated, and is much more likely to assume the form which will be fully described later as typho-malarial fever.

Typhoid fever has also occurred frequently in Central America and the West India Islands. It has prevailed from time to time in the states of South America, and occasionally assumed in some of them—as, for instance, Brazil and Chili—an epidemic form.

Typhoid fever is endemic in the British Isles, but, according to Murchison, is most common in England, more common in Ireland than in Scotland, and in Scotland more common on the west than on the east coast. It also exists as an endemic disease in every country of the continent of Europe, from Sweden and Norway on the north to Turkey on the south, and in some of them—as, for instance, France and Germany—would seem to be of much more frequent occurrence than in this country, or even in England. Medical literature is also not deficient in evidence that it has prevailed at various times in all the different countries of Asia and Africa and in Australia. Morehead asserted in the first edition of his Clinical Researches on Diseases in India that India enjoyed an absolute immunity from typhoid fever, but in the second edition of this work he acknowledged that a larger experience had led him to change his opinion on this point. Moreover, the writings of Annesley, Twining, and other Indian authors furnish convincing proof that the disease is by no means unknown in that country. Indeed, even the relative immunity from it which it has been claimed that tropical and subtropical countries possess has been found, upon a fuller study of the diseases of these countries, not to exist to anything like the degree that was formerly supposed.

The occasional occurrence of typhoid fever in islands separated from the main land by a considerable distance—as, for instance, the island of Norfolk,19 which is situated in the Pacific Ocean four hundred miles west of South America—is an interesting fact, and one which, with the present limits to our knowledge on the subject, it is impossible to explain satisfactorily.

19 Metcalfe, Brit. Med. Jour., Nov., 1880.

The ETIOLOGY of typhoid fever may be considered under the heads of—1, predisposing, 2, exciting causes.

1. PREDISPOSING CAUSES.—All observers agree that the predisposition to typhoid fever is greater in childhood and early adult life than after thirty years of age. Thus, Murchison states that during twenty-three years nearly one-half the admissions to the London Fever Hospital were of patients between fifteen and twenty-five years of age, and that in more than a fourth, the patients were under fifteen years. On the other hand, in less than a seventh were they over thirty, and in only one in seventy-one did their ages exceed fifty. Taking these facts in connection with the circumstance that the entire population of England and Wales in 1861 was 12,481,323 persons under thirty years of age and 7,584,901 above thirty, it follows, he says, that persons under thirty are more than four times as liable to enteric fever as persons over thirty. Jackson found that the average age of the patients in two hundred and ninety-one cases observed at the Massachusetts General Hospital was a little over twenty-two years, the average age in the fatal cases being somewhat greater than in those in which recovery took place. Liebermeister, from an analysis of a large number of cases treated at the hospital in Basle, has arrived at the same conclusion. No age, however, enjoys a complete immunity from the disease. Manzini20 has recorded a case in which lesions of Peyer's patches similar to those of typhoid fever were found in a seventh-month foetus which died within half an hour after its birth. Cases are also on record in which death has occurred from this disease in the first few weeks of life. I have myself observed several cases in young children at the Children's Hospital in Philadelphia. The probability is, that it is of even more frequent occurrence in children than is generally supposed, as this class of patients is not often admitted into general hospitals, and as from the absence of some of its characteristic symptoms when it occurs in the very young the nature of the disease is often unrecognized.

20 Quoted by Murchison.

On the other hand, the disease occurs not infrequently in advanced life: 83 cases out of 5911 were observed at the London Fever Hospital in persons over fifty, 27 in persons over sixty, and in 2 the age was seventy-five. In a case recorded by D'Arcy the age of the patient was eighty-six, and in one reported by Hamernyk it was ninety.21 Bartlett long ago contended that the disease was not so rare as was generally supposed among people over forty years of age; and there is really no good reason to believe that the susceptibility to the causes of the disease in an unprotected person diminishes with advancing years, the immunity from this disease which elderly people appear to enjoy being probably due to the fact that, as the disease is not uncommon in early life, they are in many instances protected by having already passed through an attack.

21 Quoted by Murchison.

The mean age of the male patients treated at the London Fever Hospital was slightly in excess of that of the female, but in the cases analyzed by Jackson the reverse of this was observed.

The statistics of all general hospitals, with very few exceptions, show a greater or less preponderance of males over females among the typhoid fever patients treated in them. According to Murchison, of 5988 cases admitted into the London Fever Hospital during twenty-three years, 3001 were males and 2987 were females. Of 891 cases admitted into the Glasgow Infirmary during twelve years, 527 were males and 364 females. Liebermeister states that 1297 male typhoid patients and 751 female were treated in the hospital at Basle from 1865 to 1870. Occasionally, the difference is even greater than is indicated by these figures. Thus, of 138 cases observed by Louis, all but 32 occurred in males. When, however, we consider that the proportion of men who apply for admission to hospitals when sick is much larger than that of women, we should hesitate before accepting these statistics as proof that the former are more liable to be attacked by typhoid fever than the latter. Indeed, the opinion which Murchison expresses is generally accepted as correct by authors, that neither sex is more likely than the other to contract the disease. Liebermeister asserts that pregnant and puerperal women and those who are nursing infants enjoy a relative immunity. On the other hand, Nathan Smith says that while the sexes are equally liable to it, more women are cut off by it than men, in consequence of its appearance during pregnancy or soon after parturition.

It was long ago pointed out by certain French observers that newcomers are much more liable to be attacked by typhoid fever than persons who have lived for some time in an infected locality. In 129 cases examined with reference to this point by Louis, the patients in 73 had not resided in Paris more than ten months, and in 102 not more than twenty months. Bartlett noticed that during an epidemic in Lowell which he had the opportunity of observing the disease attacked the recent residents in much larger proportion than the old. Liebermeister also calls attention to this peculiarity of the disease. Murchison's experience in reference to this point has been somewhat similar, for he found upon examination of the records of the London Fever Hospital that 21.84 per cent. of the patients admitted there for typhoid fever had been residents of London for less than two years. Almost all of these patients came, he says, from the provinces of England, and were in good health and comfortable circumstances at the date of their arrival in London and for some time after. Moreover, a large proportion of them were first attacked within a few weeks after changing their residence from one part of London to another. He also refers to instances in which successive visitors at the same house at intervals of months, or even years, have been seized shortly after their arrival with typhoid fever or with diarrhoea, from which the ordinary occupants were exempt. These facts indicate with sufficient clearness that habitual exposure to the causes of the disease confers, to a certain extent at least, an immunity from their effects, just as it does in the various forms of disease arising from malaria. It is not unlikely, as has been suggested by Wilson,22 that one of the causes of the frequency of typhoid fever in the early autumn in our American cities among well-to-do people is to be formed in the circumstance that during an absence of two months or more in the mountains or by the sea they have to some extent lost the immunity acquired by habitual exposure to sewer emanations, and return to the atmosphere of the city unprotected.

22 The occurrence of typhoid fever in the early fall among persons who have spent the summer out of town is, however, susceptible of another explanation. In many instances they have returned to houses which have been not only unoccupied, but closed, during several months, and which, in consequence of the more or less complete evaporation of the water in the traps of the drain-pipes, have been thoroughly permeated by sewer gas.

There is no evidence that any particular occupation acts as a predisposing cause of typhoid fever. Among the 621 patients treated at the Pennsylvania Hospital during the last ten years, were representatives of every branch of industry, and the same fact has been observed at every general hospital, not only in this country, but abroad. There is also no reason to believe that the station in life of itself exerts much influence in predisposing to the disease. The rich suffer equally with the poor. It would appear, indeed, that since the recent general introduction of ill-ventilated water-closets and stationary washstands into the houses of the better classes the liability of the former to suffer from the disease is greater than that of the latter.

Persons recovering from an illness or in an infirm condition of health do not appear to be more liable than others to be attacked by typhoid fever. Among the many patients who have fallen under my care only a very few were in ill-health at the time of their seizure. The same fact has been noticed by Murchison and other observers. Indeed, Liebermeister goes so far as to say that typhoid fever attacks by preference strong and healthy persons, while it avoids those suffering with chronic ailments. That this latter class of patients enjoys no immunity from the disease when exposed to its causes is shown by a fact which he himself records. During his service at the hospital at Basle from 1865 to 1871 several of the patients in the medical and surgical wards were attacked by typhoid fever, the cases being especially numerous in two rooms which were situated one directly over the other. Upon investigation it was found that a wooden pipe which extended from the sewer to the roof ran by both of these rooms. The sewer at the point where this pipe ran into it was of faulty construction, and was turned at a right angle, so that the refuse matter collected there. Since this source of infection was made known repeated cleansings, washings, and disinfections have been followed by satisfactory improvement, and Liebermeister believes that if the sewer were entirely altered the infection would disappear.

It would seem only natural that intemperance, by diminishing the powers of resistance in the individual, would increase his liability to contract typhoid fever, but there is no proof that it does so. Few of the patients who have come under my care were intemperate, and still fewer were broken down by this cause. There is also no evidence that grief, fear, or any other depressing emotion is a predisposing cause of the disease, and the same may be said of bodily fatigue and overcrowding. On the other hand, much importance has been attached by writers to idiosyncrasy as a predisposing cause of typhoid fever. What the peculiarities of constitution are which increase the liability to the disease are not definitely known, but there can be no question that it occurs much more frequently, and is much more fatal, in some families than in others.

Typhoid fever occurs with the greatest frequency in this country, as it does with very few exceptions elsewhere, during the latter half of summer and the early part of autumn. Indeed, its greater prevalence at this season than at other times has given to it the name of "autumnal" and "fall fever," by which it is popularly known in many sections of this country as well as of England. On the other hand, the disease is usually at its minimum in May and June. The number of cases, however, does not usually immediately diminish upon the onset of cold weather. On the contrary, R. D. Cleemann,23 from a comparison of the mortality returns of Philadelphia for a period of ten years, observed that after diminishing in November they not infrequently underwent a marked increase in December. Of 621 cases treated at the Pennsylvania Hospital during the last ten years, 89 were admitted during spring, 259 during summer, 182 during autumn, and 91 during winter. Of 5988 cases treated at the London Fever Hospital,24 759 were admitted in the spring, 1490 in summer, 2461 in autumn, and 1278 in winter. Of the whole number, 27.7 per cent. were admitted in the two months of October and November, and in April and May only 7.3 per cent. Hirsch25 has published statistics which do not differ materially from these. He also mentions the interesting fact that in Rio Janeiro the maximum of the disease occurs in the months from March to June, or, in other words, in the season which in that latitude corresponds to our autumn. There are, however, some exceptions to the general rule of the greater prevalence of the disease during the autumn. Bartlett, who was aware of its greater frequency at that time, refers to an extensive and fatal epidemic which occurred in the city of Lowell in Massachusetts during the winter and early spring; and similar visitations have been observed in other places.

23 Transactions of the College of Physicians of Philadelphia, 3d S. vol. iii.

24 Murchison.

25 Handbuch der Historisch-Geographischen Pathologie, Stuttgart, 1881.

Most authors agree with the statement made by Murchison, that typhoid fever is unusually prevalent after summers remarkable for their dryness and high temperature, and that it is unusually rare in summers and autumns which are wet and cold. Certainly, the severest epidemic of the disease which has been observed in Philadelphia in several years occurred in the year 1876, during and after a summer of exceptionally high temperature, and one characterized by a decidedly diminished rainfall. Still, there can be no question that the increased prevalence of the disease at this time was due, in part at least, to the crowded condition of the city consequent upon the Centennial Exhibition. In 1872, although the mean of the summer temperature was slightly higher than that of 1876, the disease did not prevail in an epidemic form. This may be explained by the fact that the rainfall of the summer months of this year was decidedly greater than the average. Hirsch, however, attaches much less importance to temperature as a factor in the production of typhoid fever than most other authors. He says that he has found, from a comparison of a large number of epidemics, that the disease occurs almost as often in cool as in hot summers, in cold as in warm autumns, and in mild as in severe winters. Murchison, moreover, admits that mere dryness of the atmosphere is not conducive to an increase of typhoid fever. On the contrary, he says, warm, damp weather, when drains are most offensive, is often followed by an outbreak of the disease.

The relation which temperature and moisture bear to the causation of typhoid fever is therefore not definitely ascertained. It is certain, however, that the largest number of cases does not occur at the period of the greatest heat, but is usually not observed until from six weeks to two months afterward, and the minimum is not reached until about the same length of time after that of the most intense cold. This difference in time Murchison explains by the hypothesis that the cause of the disease is exaggerated or only called into action by the protracted heat of summer and autumn, and that it requires the protracted cold of winter and spring to impair its activity or to destroy it. On the other hand, Liebermeister, who believes that the breeding-places of typhoid fever lie deep in the earth, holds that the time is consumed in the penetration of the changes of temperature to the place where the typhoid poison is elaborated, in the development of the poison without the human body, and in the period of incubation. In some places the maximum of the disease is observed earlier in the year than in others. In Berlin, for instance, the largest number of fatal cases occurs in October, while in Munich it does not occur until February. This depends, he thinks, upon the difference in the distance beneath the earth's surface of these breeding-places in different localities, and the deeper they are the longer, he says, will it be before they are affected by the heat of summer or the cold of winter, since the changes of the temperature of the air are followed by corresponding changes in the temperature of the earth more and more slowly the deeper we go beneath the surface.

Buhl and Pettenkofer have, as the result of a series of observations carried on in Munich over a number of years, reached the conclusion that an intimate relation exists between the variations in the degree of prevalence of typhoid fever and the rise and fall of water in the soil. When the springs were low they found that there was a marked increase in the number of cases; when, on the other hand, they were high, there was just as decided a diminution. Out of this fact they have evolved the theory that the cause of typhoid fever lies deep in the soil, and has the power of multiplying itself there, and that this property is very much increased when the water-level sinks, and the upper layers of the earth are consequently exposed to the air. It is, on the contrary, diminished when the water-level rises and the earth is again saturated with moisture. It is unquestionably true, as has already been stated, that it is principally after hot and dry weather, when the springs are of course low, that typhoid fever is most prevalent, and that it very frequently subsides after the occurrence of very heavy rains; but it is not necessary to adopt the theory of Buhl and Pettenkofer to explain these facts. It seems quite as probable that the increased prevalence of the disease after dry weather is due, as suggested by Buchanan and Liebermeister, to the greater amount of solid matter which is then suspended in the water of the springs. A larger proportion of the germs of the disease, if there should be any present in the soil, will therefore be contained in any given quantity of the drinking-water. The theory fails to account, as pointed out by Murchison, for the connection which is frequently observed between defective house-drainage and outbreaks of typhoid fever, occurring irrespectively of any variations in the subsoil water. And, moreover, outbreaks of the disease have occurred under precisely opposite circumstances, as the outbreak at Terling in 1867, recorded by Thorne,26 which was coincident with a rise in the subsoil water after drought.

26 Quoted by Murchison.

It is believed in many parts of our country that there is an antagonism between typhoid fever and the various forms of malarial fever, and it is unquestionably true that in many districts in which the latter were formerly prevalent they have ceased to be frequent, and have been replaced apparently by the former. In the cultivation of the soil the causes of malarial fever disappear, or at least become less potent. On the other hand, the increase of population and the neglect of all sanitary laws in the building of towns, and the construction of sewers with their house connections, seem to favor the occurrence of typhoid fever. But there is no real antagonism between the diseases. During the recent Civil War typhoid fever was not infrequently developed in soldiers suffering from malarial disease. Indeed, so frequent was it to have the manifestations of the two diseases in the same individual that many observers at that time supposed they had a new disease to deal with, to which they gave the name of typho-malarial fever.

2. EXCITING CAUSES.—Much diversity of opinion has existed in times past and to a certain extent continues to exist, in regard to the contagiousness of typhoid fever. In the early part of this century there was quite a number of good observers, including Nathan Smith in this country, and Bretonneau and Gendron of Château du Loir in France, who held the opinion it was an eminently contagious disease. Indeed, Smith went so far as to say that its contagiousness was as fully demonstrated as that of measles, small-pox, or any other disease universally admitted to be contagious. This was also the opinion of William Budd, who maintained that the contagious nature of typhoid fever was the master truth in its history. The late Sir Thomas Watson was also a warm supporter of the same view. At the present time, however, the large majority of physicians, whose opportunities for observation give weight to their opinions, do not regard the disease as contagious in the strict sense of the word. During the past twenty-four years I have been almost uninterruptedly connected with large general hospitals, and during that time have had a large number of cases of typhoid fever under my care, and a still larger number more or less under my observation. During all this time I have never known but one case to originate within a hospital, and that occurred in a servant whose duties did not bring her in immediate contact with the sick. Murchison's experience with a much larger number of cases has been very similar. In twenty-three years, in which 5988 cases were treated in the London Fever Hospital, only 17 residents contracted the disease, and most of these had no personal contact with the sick. Liebermeister asserts that he has never known a case to originate in a hospital from direct contagion. When such cases appeared to have occurred, they could generally be traced, he says, to some defective sanitary condition of the hospital.

There are, nevertheless, many facts on record which, unless duly weighed, appear to lend a good deal of support to the theory of the contagiousness of typhoid fever. Among the most important of these are (1) the occurrence in rapid succession of several cases in the same house, and (2) the limited epidemics which occasionally follow the arrival of an infected person into a previously healthy locality. These facts are, however, susceptible of an entirely different explanation.

1. In those instances in which several cases of the disease have occurred in the same house, it not infrequently happens that some defect in its sanitary conditions is detected, or that the drinking-water is found to be impure. The same cause which produced the first case may, therefore, also have produced those which succeeded it. Indeed, the interval between the cases is sometimes so short that for this reason alone, if there were no other, they could scarcely be attributed to contagion. It not infrequently happens that the seizure of one member of a large family is followed on the next day by that of another, and on the third or fourth by that of still another. Now, while it is undoubtedly true that the period of incubation has appeared in some cases to be very short, we know that under ordinary circumstances it is usually about two weeks.

2. The explanation of the second fact is not more difficult, but in order that it may be clear to the reader it will be well to give in detail a few of the instances on record in which the arrival of an individual sick with typhoid fever in a previously healthy locality has been followed by an outbreak of the disease. Nathan Smith refers to two cases of this character. In both of these the disease appeared to be communicated to several individuals by patients who had contracted the disease elsewhere. So little is said in the reports of these cases of the water-supply of the localities in which they occurred, or of the manner of disposing of the discharges of the patients, that they would scarcely now be used as arguments in favor of the contagiousness of the disease. The report of a local epidemic by Austin Flint, Sr., is more satisfactory in this respect, and is as follows: A stranger was detained in a small village near Buffalo by an illness which proved fatal in the course of a few days, and which was recognized as typhoid fever by his attending physicians. Up to this time, it is stated, typhoid fever had never been known in the neighborhood. In the course of a month more than one-half of the population, numbering forty-three, was attacked by the disease, and ten had died. The family of the tavern-keeper at whose house the stranger lodged was the first to suffer, and of the families immediately surrounding the tavern but one wholly escaped, that of a man named Stearns. Upon investigation, it was ascertained that this family alone, of all these families, did not use the well belonging to the tavern, but had its own water-supply. The occurrence of the disease naturally produced great excitement, and Stearns, between whom and the tavern-keeper a quarrel existed, was suspected of having poisoned the well; but an examination of the water showed this suspicion to be unfounded. There can, however, be little doubt that the water of the well, which was in all probability contaminated by the discharges of the stranger, was the means of propagating the disease; for although it is said that the family of Stearns was cut off by the quarrel from all intercourse with that of the tavern-keeper—a fact upon which some stress is laid by Flint—it does not appear that a similar isolation existed as regards the other families affected.27

27 A Treatise on the Principles and Practice of Medicine, by Austin Flint, M.D., Philadelphia, 1868.

The manner in which the arrival of a sick person may cause the dissemination of the disease in a previously healthy community is even better shown by the following histories of local outbreaks:28

"The water-supply pipes of the town of Over Darwen were leaky, and the soil through which they passed was soaked at one spot by the sewage of a particular house. No harm resulted till a young lady suffering from typhoid fever was brought to this house from a distant place. Within three weeks of her arrival the disease broke out and 1500 persons were attacked. At Nunney a number of houses received their water-supply from a foul brook contaminated by the leakage of a cesspool of one of the houses, but no fever showed itself till a man ill with typhoid came from a distance to this house. In about fourteen days an outbreak of fever took place in all the houses."

28 Wm. Cayley, M.D., Brit. Med. Jour., March 15, 1880.

There are many other observations which seem to render it certain that the alvine dejections are a most important medium by which typhoid fever is communicated to others; and yet there is no evidence that they possess this power in a fresh condition. They have been repeatedly examined, and even handled, with impunity, and, as has already been stated, it is rare for the disease to be imparted to the immediate attendants upon the sick, or in a well-ventilated hospital to the other patients in the same ward, provided that the discharges are disinfected and removed immediately after being passed, and the bed-linen and clothes of the patient changed whenever they are soiled. The feces must therefore undergo some changes before they become possessed of virulent properties. This appears to be shown conclusively by the following facts: (1) laundresses who wash the soiled clothes of typhoid fever patients not infrequently contract the disease; (2) the occupants of houses connected by ill-trapped drains with sewers into which the discharges of such patients have found their way often suffer severely from the disease; and (3) the use of water polluted by such discharges is, as has already been shown, almost certain to induce the disease in persons not protected by a previous attack.

The following histories of outbreaks of typhoid fever will show clearly how the dejections of patients may be the means of propagating the disease to others:

ILLUSTRATIVE CASES—Lausen29 is a village lying on the railway between Basle and Olten shortly before coming to the great Hauenstein Tunnel. It is situated in the Jura, in the valley of the Ergolz, and consists of 103 houses with 819 inhabitants. It was remarkably healthy, and resorted to on that account as a place of summer residence. With the exception of six houses it is supplied with water by a spring with two heads which rises above the village at the southern foot of a mountain called the Stockhalder, composed of oolite. The water is received into a well built covered reservoir, and is distributed by wooden pipes to four public fountains, whence it was drawn by the inhabitants. Six houses had an independent supply—five from wells, one from the mill-dam of a paper-factory. On August 7, 1872, ten inhabitants of Lausen, living in different houses, were seized by typhoid fever, and during the next nine days fifty-seven cases occurred, the only houses escaping being those six which were not supplied by the public fountains. The disease continued to spread, and in all 130 persons were attacked, and several children who had been sent to Lausen for the benefit of the fresh air fell ill after their return home. A careful investigation was made into the causes of this epidemic, and a complete explanation was given. Separated from the valley of the Ergolz, in which Lausen lies, by the Stockhalder, the mountain at the foot of which the spring supplying Lausen rises, is a side valley called the Furjust, traversed by a stream, the Furlenbach, which joins the Ergolz just below Lausen, the Stockhalder occupying the fork of the valley. The Furlenthal contains six farm-houses, which were supplied with drinking-water, not from the Furlenbach, but by a spring rising on the opposite side of the valley to the Stockhalder. Now, there was reason to believe that under certain circumstances water from the Furlenbach found its way under the Stockhalder into one of the heads of the fountain supplying Lausen. It was noticed that when the meadows on one side of the Furlenbach were irrigated, which was done periodically, the flow of water into the Lausen spring was increased, rendering it probable that the irrigation water percolated through the superficial strata and found its way under the Stockhalder by subterranean channels in the limestone rock. Moreover, some years before a hole on one occasion formed close to the Furlenbach by the sinking in of the superficial strata, and the stream became diverted into it and disappeared, while shortly afterward the spring of Lausen began to flow much more abundantly. The hole was filled up, and the Furlenbach resumed its usual course. The Furlenbach was unquestionably contaminated by the privies of the adjacent farm-houses; the soil-pits communicated with it. Thus, from time immemorial, whenever the meadows of the Furlenthal were irrigated the contaminated water of the Furlenbach, after percolation through the superficial strata and a long underground course, helped to feed one of the two heads of the fountain supplying Lausen. The natural filtration, however, which it underwent rendered it perfectly bright and clear, and chemical examination showed it to be remarkably free from organic impurities, and Lausen was extremely healthy and free from fever. On June 10th one of the peasants of the Furlenthal fell ill with typhoid fever, the source of which was not clearly made out, and passed through a severe attack with relapses, so that he remained ill all summer; and on July 10th a girl in the same house, and in August a boy, were attacked. Their dejections were certainly, in part, thrown into the Furlenbach; and, moreover, the soil-pit of the privy communicated with the brook. In the middle of July the meadows of the Furlenthal were irrigated as usual for the hay crop, and within three weeks this was followed by the outbreak at Lausen.

29 William Cayley, M.D., British Medical Journal, Mar. 15, 1880.

In order to demonstrate the connection between the water-supply of Lausen and the Furlenbach, the following experiments were performed. The hole mentioned above as having on one occasion diverted the Furlenbach into the presumed subterranean channels under the Stockhalder was cleared out, and 18 cwt. of salt were dissolved in water and poured in, and the stream again diverted into it. The next day salt was found in the spring at Lausen. Fifty pounds of wheat flour were then poured into the hole, and the Furlenbach again diverted into it, but the spring at Lausen remained clear, and no reaction of starch could be obtained, showing that the water must have found its way under the Stockhalder, in part by percolation through the porous strata, and not by distinct channels.

Volz30 refers to an epidemic which occurred at Gerlachsheim, a village of Germany, some years ago, in which, in the course of three weeks, 52 persons residing on one of the principal streets were attacked by the disease. It was found, upon investigation, that they all got their water from a well which was polluted by the stools of the first patient. A. Pasteur31 reports an epidemic caused by the contamination of a well by typhoid dejections, and which ceased when the use of the water was discontinued. Niericker32 also reports an outbreak which was found to be due to a similar pollution of the drinking-water, and which likewise ceased when the water-supply was derived from another source.

30 Schmidt's Jahrbuch.

31 Revue méd. de la Suisse, Mars 15, 1881.

32 Schweiz. Corr. Bl., ix. 1, 1879.

An outbreak of the disease which occurred in a farm-house situated about eight miles from the city of Philadelphia came under my own observation. The first case occurred in a young girl of sixteen, who, with the exception of an occasional visit to the city, had not been away from her own home for several months before she was taken ill. The disease ran in her a severe course, and eventually terminated fatally. About three weeks afterward four other members of the family were attacked, one of whom died. Two other persons, living in a house on the opposite side of the road, but who were in the habit of drinking water from the same well, also took the disease. There was no other case of typhoid fever in the immediate vicinity, nor had there been for some time. The farm-house is situated in a cup-shaped depression, so that water flowed toward it from all directions. The cellar was constantly filled with water during the winter, and just before the outbreak had contained not only an unusually large quantity, but also a large amount of decaying vegetable matter. The well from which the family drew their drinking-water is situated within a few feet of the kitchen door, and at some distance from the cesspool used by the family, so that there was no reason to believe that there was any communication between the two. The wall of the well was found to be very much loosened by the roots of two trees growing in the immediate vicinity. As the ground was also very much cut up by the burrows of rats, the water used for the various household purposes, and which was habitually thrown into a gutter which ran past the well, found a ready access to it. There would seem to be but little doubt that the first patient contracted the disease in some way during her visits to the city, and that the disease in the other patients arose from their drinking the water of the well which had been polluted by that used in washing her soiled linen.

Ballard33 has shown very clearly that milk may also be a medium of communication of the disease. He found that an epidemic which occurred in the parish of Islington, London, in 1871 was (1) almost entirely confined to a district comprised within a circle having a radius of not more than a quarter of a mile; (2) that out of 62 families living within this district, who were known to have suffered from typhoid fever, 54 were constantly supplied with milk from a particular dairy, and it was satisfactorily proved that at least three of the remaining eight had occasionally partaken from the same source; and (3) that out of 142 families, comprising all the customers of this dairy, and living not only within the district above specified, but in other parts of the parish, 70, or very nearly one-half, were invaded by typhoid fever within the ten weeks during which the outbreak lasted. Upon a visit to the farm from which the milk came it was ascertained that a member of the dairyman's family had been ill with typhoid fever, and that the water of the well which supplied the family with drinking-water had been polluted by his discharges. Although the dairyman denied that this water had ever been mixed with the milk, he admitted that it had been used to wash the milk-pans. Murchison was also able, in an outbreak which occurred in another district of London, to trace the disease to the same source.

33 On a Localized Outbreak of Typhoid Fever in Islington, London, 1871.

Typhoid fever may be likewise propagated in consequence of the contamination of the atmosphere by the typhoid poison. This may be the result of allowing the undisinfected stools, or linen soiled by them, to remain for some time exposed to the air, or may arise from pollution of the soil from the same cause or from defective sewage. Hermann Schmidt34 refers to several epidemics breaking out in garrisons which he believed to be due to pollution of the soil. In the citadel of Wurzburg typhoid fever occurred through several years, and persisted in spite of the cutting off of the water-supply, which was believed to be impure. It was finally found that the ground upon which it was built was saturated with all kinds of impurities. Volz refers to outbreaks of the disease from the same cause.

34 Die Typhus Epidemie in Fusillier Bat. zu Tübingen in Winter 1876-77, enstanden durch einathmung, giftiger Grundluft, Tubingen, 1880.

But perhaps the most striking example of this mode of propagation of the disease is that recorded by Budd,35 and is as follows: Two adjacent cottages, which for the sake of convenience may be designated as Nos. 1 and 2, had a privy in common, which was in the form of a lean-to against the gable end of No. 2. Through this privy there flowed with very feeble current a small stream which formed the natural drain for it. Having already performed this office for some twenty or thirty other houses higher up its course, the stream had acquired all the character of a common sewer before reaching the cottages in question. About a quarter of a mile farther on it acted as a drain for a privy, common as before, for two other cottages, Nos. 3 and 4. Notwithstanding the condition of the stream, which was so foul that it was said that the stink from it was often enough "to knock a man down," no evil result appeared to have occurred until a man living in No. 1 contracted typhoid fever—elsewhere, it was believed. As a matter of course, all his discharges were thrown into the common privy. In this way for more than a fortnight the stream which passed through it was daily fed with the specific excreta from the diseased intestines of the patient. No further cases occurred until the latter end of the third week or the beginning of the fourth week, when several persons were simultaneously attacked by the same fever in all four cottages. From first to last, the outbreak was confined to these four cottages, and there was no other case of typhoid fever at this time in the neighborhood.

35 Typhoid Fever: Its Nature, Mode of Spreading, and Prevention, by William Budd, M.D., F.R.S., London, 1873.

The mattrass used by typhoid-fever patients, their bed-linen and clothes, have each been the medium by which the disease has been communicated to others. This is, as has already been pointed out, unquestionably due to the fact that these articles are generally soiled by their discharges, and that time has been allowed for the latter to acquire infective properties. It seems not improbable that the few cases in which the disease appears to have been contracted from the dead body may be explained in the same way. The statistics of the London Fever Hospital show that laundresses are more liable to contract typhoid fever than the immediate attendants upon the sick. This liability is greatest in those cases in which the bed-linen and clothes of patients are not immediately disinfected after use. According to Budd, the sputa in cases of typhoid fever where bronchitis is excessive may sometimes contain the germs of the disease, and mentioned a case in which he believed they were the means by which the disease was propagated.

The question naturally arises here, whether this is the only way in which the disease can originate. This is a subject which has given rise to a good deal of controversy, and therefore demands some consideration at our hands. On the one hand, it is argued that typhoid fever never occurs in the absence of the specific poison or germ of the disease, and that this is contained principally, if not wholly, in the alvine dejections. On the other hand, it is contended that it may, and often does, originate spontaneously, and that all that is necessary to produce it is the presence of decomposing fecal or other organic matter, and the consequent contamination of the food, drink, or atmosphere. Both of these views have found able advocates. Among the upholders of the latter view is Murchison, who cites the histories of several outbreaks of typhoid fever which occurred in localities which had not been visited by it for many years, and which, after a careful investigation of all the circumstances attending them, he was forced to conclude had no connection with any previous case of the disease, and could only be explained by admitting that it might occasionally have an independent origin. Among the more remarkable of these outbreaks is the following, which we give in Murchison's own words:

"In August, 1829, 20 out of 22 boys at a school at Clapham within three hours were seized with fever, vomiting, purging, and excessive prostration. One other boy, aged three, had been attacked with similar symptoms two days before, and had died comatose in twenty-three hours; another boy, aged five, died in twenty-five hours; all the rest recovered. Suspicions were entertained that they had been poisoned, and a rigorous investigation ensued. The only cause which could be discovered was, that a drain at the back of the house, which had been choked up for many years, had been opened two days before the first case of illness, cleared out, and its contents spread over a garden adjoining the boys' playground. A most offensive effluvium escaped from the drain, and the boys had watched the workmen cleaning it out. This was considered to be the cause of the disease by Latham and Chambers, and by others who investigated the matter, and also by Sir Thomas Watson. The morbid appearances in the two fatal cases were described as like those of the common fevers of this country. Peyer's patches and the solitary glands of the small and large intestines were enlarged like 'condylomatous elevations,' and in one case the mucous membrane over them was slightly ulcerated. The mesenteric glands were enlarged and congested."

"A remarkable instance of a circumscribed outbreak of fever was recorded by Sir R. Christison in 1846. It occurred in an isolated farm-house in the thinly-peopled county of Peebles, N.B. Every one of the fifteen residents was seized with fever, and three died. Many of the servants who worked during the day at the farm were also affected, but none communicated the disease to their families who did not visit the farm. There was no evidence that the disease was imported from without, and the only explanation of the outbreak was, that the drains and sewers were found all closed and obstructed with the accumulated filth proceeding from the privies and farm-yard, the effluvia from which was very offensive."

"About Easter, 1848, a formidable outbreak of fever occurred in the Westminster School and the Abbey Cloisters, and for some days there was a panic in the neighborhood respecting the 'Westminster fever.' No case of fever had occurred in the Abbey Cloisters for three years, and there was no evidence of its having been imported. Within little more than eleven days it affected thirty-six persons, all of the better class, and in three instances it proved fatal. Shortly before its first appearance there occurred two or three days of peculiarly hot weather, and a disagreeable stench, so powerful as to induce nausea, was complained of in the houses in question. It was found that the disease followed very exactly in its course the line of a foul and neglected private sewer or immense cesspool, in which fecal matter had been accumulating for years without any exit, and into which the contents of several small cesspools had been pumped immediately before the outbreak of fever. This elongated cesspool communicated by direct openings with the drains of all the houses in which it occurred; the only exception was that of several boys, who lived in a house at a little distance, but who were in the habit of playing every day in a yard in which there were several gully-holes opening into the foul drain."

The following cases would seem, however, to furnish stronger evidence in favor of the occasional spontaneous origin of typhoid fever than any of those referred to by Murchison. The first is recorded by P. Herbert Metcalfe,36 and occurred in Norfolk Island in the Pacific Ocean, 400 miles from the nearest inhabited land. The patient was a gentleman who had come from England four months previously. To Metcalfe's certain knowledge, there had been no typhoid fever on the island for fifteen months. Three years previously a man is reported to have died of it, and in 1868 there had been an epidemic of fever, but he could not ascertain of what kind. Upon inquiry, he found that his patient had been drinking water from a well which had the reputation of being unclean, and that he was the only person who had done so. He also found that at a distance of seven feet there was an open sewer, and that just opposite to the well much of the sewage-water became so stagnant as to form an offensive cesspool. The well was cleaned out, and at the bottom of it were found four feet of stinking sewage mud, the skeleton of a duck, a pig's jaw, etc. The well was so situated that had there been any typhoid fever previously to this case the water could not have been contaminated by the specific poison, as the above-named sewer only conveyed water from the kitchen, which is a building detached from the dwelling-houses of the mission, and is far from and on a higher level than the open closets in use.

36 British Medical Journal, Nov. 6, 1880.

In the second case, which is reported by R. Bruce Low,37 Medical Officer of Health, Helmsley, Yorkshire, occurred in a lad who had not been away from his home for months. No stranger had visited his house, and there was no fever in the district, the last case having occurred eight months previously in a sequestered valley eight miles away. The patient's habits and those of his family were revoltingly dirty. The garden privy was in bad repair, the filth level with the seat, and the smell from it very offensive. Thirty years before there had been five cases of slow typhus in the house. In his remarks on this case Low says: "This case did not owe its origin to direct infection, and the question naturally arises, was this a case originating de novo, or had the poison been due to infection in some way or another from the cases which occurred thirty years previously?"

37 Brit. Med. Jour., 1880.

There can be but little doubt that in many of the cases cited by Murchison as instances of the spontaneous origin of typhoid fever there was an introduction of the germs of the disease from without. At all events, the evidence to the contrary is by no means convincing. For example, in the account of the outbreak at the Westminster School it is expressly stated that "the contents of several small cesspools had been pumped before the outbreak of the fever" into the large cesspool, the emanations from which it was believed had caused the fever. It does not seem that it was positively ascertained that none of these small cesspools had been used by a typhoid-fever patient, or that typhoid stools had not found their way into them in some other way. Moreover, in diseases generally admitted to be contagious it is not always possible to ascertain positively the source of infection in a particular instance. But after the elimination of all doubtful cases there yet remains a certain number in which it is reasonably certain that there has been no recent importation of the typhoid-fever germs, as in the case which is reported by Metcalfe and which occurred on Norfolk Island, and in that recorded by Low. The assumption does not seem an unwarranted one that in these cases the poison of the disease, which had been present before in a latent condition, had been suddenly called into activity by favoring influences. The following observation of Von Gietl38 shows the length of time typhoid-fever stools may retain their infective properties: "To a village free from typhoid an inhabitant returned suffering from the disease, which he had acquired at a distant place. His evacuations were buried in a dunghill. Some weeks later five persons, who were employed in removing dung from this heap, were attacked by typhoid fever; their alvine discharges were again buried deeply in the same heap, and nine months later one of two men who were employed in the complete removal of the dung was attacked and died." If we assume—and there is no reason to doubt that this point was fully investigated by Von Gietl—that the patient in the latter case had not been otherwise exposed to the causes of the disease, the observation shows that the stools in typhoid fever retain their virulence for nine months. If for nine months, why may they not do so for a much longer period—for as many years, for example? No probability is violated by this hypothesis. On the contrary, it is in full accordance with what we know of some of the lower forms of life, and will serve to explain many outbreaks of the disease which would otherwise be inexplicable—for example, the outbreak at Clapham referred to by Murchison. Admitting that the disease in this instance was really typhoid fever—and this has been denied by some observers, among whom is Sir Thomas Watson—the assumption does not seem an unwarrantable one that the germs of typhoid fever had been present in this choked-up drain long before it was cleared, but that in consequence of their exclusion from the air their infecting power was at a minimum. It was, on the contrary, much increased when the contents of the drain were exposed to the vivifying influence of the atmosphere.

38 Quoted by Cayley, Brit. Med. Jour., Mar. 15, 1880.

On the other hand, it is alleged that an individual may be exposed to the direct emanations of sewers or of foul privies, or even drink water contaminated by leakage from them, without contracting typhoid fever, so long as they do not contain the specific germ of the disease. Every physician in large practice, either in the city or country, can call to mind instances in which the air of houses or the water-supply has been polluted in this way, and yet no typhoid fever has occurred. Let, however, the specific cause of the disease be introduced from without, and this immunity almost invariably disappears. There is no reason to believe that the contamination of the water used by the family which suffered in the outbreak of the disease which has been already referred to as having come under my own observation last year was of recent origin. On the contrary, there was evidence to the contrary, and yet no disease occurred until it was imported by a member of the family who was in the habit of making frequent visits to the city. Even more strongly corroborative of this view is the history of the epidemic reported by Ballard, in which milk was the medium of communication. The water which had been used with impunity to wash the milk-pans, or perhaps to dilute the milk, became a source of danger only after the occurrence of the disease in the family of the dairyman.

Several epidemics of typhoid fever have been recently reported in which the disease appears to have been caused by the use of the flesh of diseased animals or of meat in a condition of putrefaction. In some of these the symptoms were rather those of irritant poisoning than of typhoid fever, and consisted principally in violent vomiting and purging coming on very shortly after the ingestion of the unwholesome food. There yet remains a certain number in which the symptoms cannot be thus explained.39 One of the most remarkable of these occurred in 1878 at a festival which was held at Kloten, a place about seven miles north of Zurich, of which the following is a condensed description: Out of 690 persons who sat down to the collation, 290 were taken ill; 378 other persons, who did not attend the festival, but who partook of the meat provided for it, were also affected. In addition these, 49 secondary cases occurred—i.e. of persons who subsequently became affected without having eaten of the meat. All other sources of infection could be certainly excluded, as Kloten was quite free from typhoid fever at the time, and as it was clearly shown that the water was not the cause of the outbreak. All the visitors at the festival who ate no meat escaped, as did also several persons who drank wine to excess and subsequently vomited. The period of incubation was short, as in other epidemics arising from the same cause. Some of the people were ill on the second day, with loss of appetite, nausea, headache, pain and swelling of the belly, and slight fever. These cases were slight, and generally ended in recovery. The greater number were affected between the fifth and ninth days. The symptoms in these cases, which usually ran a rapid course, and generally ended in recovery, were chills, fever, diarrhoea, great prostration, frequently violent delirium, and also profuse intestinal hemorrhage. The rose-colored eruption was present in almost all of them, and in a few the tâches bleuâtres were detected. On post-mortem examination the characteristic appearances of typhoid fever were found. With regard to the meat supplied, the following facts were ascertained: Forty-two pounds of veal were furnished by a butcher at Seebach, taken from a calf which appears to have been at the point of death when it received the coup de grace from the hands of the butcher. All the flesh of the animal was sent to supply the festival at Kloten, but the liver was eaten by an inhabitant of Seebach, and he was attacked by typhoid fever. The brain was sent to the parsonage at Seebach, and all the household became affected by the same disease. It was also ascertained that another of the calves was diseased. The veal from this calf had been kept fourteen days, and was in a decomposed state. All the meat was placed together in the meat-receptacle of the inn at which the festival was held. This receptacle was in a horribly filthy state, and Cayley thinks there can be no doubt that the putrefying flesh of this last calf, together with the state of the receptacle, would rapidly excite decomposition in the whole supply.

39 On Some Points in the Pathology and Treatment of Typhoid Fever, by William Cayley, London, 1880; also Prof. Huguenin, Schmidt's Jahrbuch, from Schweiz. Corr. Bl., viii. 15, 1878; Carl Walder, Schmidt's Jahrbuch, from Berl. klin. Wochenschr., xv. 39, 40, 1878; George R. Shattuck, M.D., Supplement to Ziemssen's Cyclopædia, New York, 1881.

Geissler, it is true, doubts whether the epidemic above described was really typhoid fever, and points out that the symptoms occurred too soon after the ingestion of the diseased meat, and reached their full development too rapidly. The cases were also accompanied by more pain in the abdomen than is generally met with in typhoid fever. The proportion of recoveries also appears to have been unusually large. Unquestionably, the patients in the Kloten epidemic were in a large number of instances simply suffering from the action of an irritant poison; but the presence of the characteristic lesions of typhoid fever in some of the fatal cases renders it certain that this disease also existed in the village at the same time.

In the report of this epidemic it is not stated that either of the calves which furnished a part of the meat for the entertainment were suffering from typhoid fever at the time they were slaughtered. It is now known positively that this animal is liable to be attacked by this disease, and a certain number of cases are on record in which the eating of the flesh of such animals has been followed by typhoid fever.40 That it does not oftener occur from this cause is probably due to the fact that a certain time must elapse before the flesh of such an animal acquires infective properties, and that it is usually used as food before this has been allowed to pass.

40 Medical Times and Gazette, Feb. 8, 1879, p. 149, from Berl. klin. Wochenschrift, No. 39, 1878.

Ludwig Letzench41 asserts that he has produced some of the intestinal appearances of typhoid fever, as well as a high degree of pyrexia, in rabbits by the subcutaneous injection of the sputa and stools of typhoid fever patients.

41 Arch. f. exper. Pathol. u. Pharmak., 1878 and 1881.

THE BACILLUS TYPHOSUS.—From what has preceded, it will be seen that the writer is disposed to range himself with those who hold that the exciting cause of typhoid fever is an organized germ, or, in other words, a contagium vivum. Although this view cannot be regarded as positively proven as yet, it has recently received some support through the investigations of Klebs, Eberth of Zurich, and others,42 who believe that they have found in the bodies of those who have died of typhoid fever a micro-organism peculiar to that disease.

42 Klebs (Philadelphia Medical Times, Dec. 3, 1881, from Archiv für experimentelle Pathologie und Pharmakologie, Bd. xiii. H. 5 and 6) claims that he has proved "that there exists in typhoid fever a separate and distinct bacillus—the Bacillus typhosus; that it undergoes certain transformations, consisting at first of little rods and small fine threads, containing a spore in the centre and often at the end, which spores divide off and form new bacilli. It later assumes a larger thread-like form, twisted at the end, and frequently taking a beautiful spiral shape; that the bacilli are observed first in the masses of epithelial cells which accumulate in the alimentary tract or in the air-passages; that they later penetrate the tissues, and are carried along by the blood-vessels and the lymphatics, and form a large network among the tissues they invade; that under a certain procedure, which never causes this same staining in any other living organism or tissue, they appear of a blue color; that they are found only in enteric fever, in which disease every part of the human body is the seat of masses of these bacilli, their quantity corresponding exactly with the severity of the symptoms; and that they produce, when carried into the system of animals, exactly the same disease with the same morbid alterations as in men." He says, further, that "the Bacillus typhosus enters the system by the respiratory passages and by the alimentary canal. This is the cause that in some cases of typhoid fever almost no abdominal symptoms are present, but a low form of pneumonia, developing from the very beginning, so that the lung seems alone to bear the brunt of the disease." He has found these bacilli in greatest numbers in Peyer's patches.

Eberth (British Medical Journal, Nov. 26, 1881, from Virchow's Archiv, Bd. lxxxi. and lxxxiii.) has shown that in typhoid fever the intestinal mucous membrane, the mesenteric glands, and the spleen contain rod bacteria, differing, as he believes, from organisms found in the body in other conditions (among others in phthisis with extensive ulceration of the intestinal mucous membrane). In seventeen cases of typhoid these bacilli were found in six and wanting in eleven. In the six cases the number of bacilli were in inverse proportion to the duration of the disease. They were not found in the spleen in the cases of the longest duration, and only scantily in the mesenteric glands. These bacilli appear not to differ in shape and size from the ordinary rod bacteria, but Eberth believes that they differ from them in their small capacity for taking on the staining of hæmatoxylon, methyl-violet, and Bismarck brown.

Wernich's views (Vjhrschr. f. Off. Geshpfl., xiii. 4, p. 513, 1881) in regard to the nature of the Bacillus typhosus differ from those held by the two authors just quoted. He regards the specific Bacillus typhosus as nothing but the ordinary Bacillus subtilis of the large intestines, which under certain circumstances acquires the power to accommodate itself to the small intestines, to undergo a higher development and to become the exciting cause of disease.

PERIOD OF INCUBATION.—The conditions under which typhoid fever occurs in large cities render it difficult, if not impossible, to arrive at a definite conclusion as to its period of incubation. Occasionally, however, the time which has intervened between the exposure to the cause and the invasion of the disease may be ascertained with precision in the outbreaks which occur in small towns or in isolated country-houses. Under these circumstances it has been found to vary within very wide limits. In the three cases related by Griesinger the attack began the day after exposure to the infection, and in the outbreak at the school at Clapham, referred to by Murchison, twenty out of twenty-two boys were seized with the disease within four days of exposure to the causes. Other instances of a similar character are on record. In cases like the above the rapidity with which the attack follows upon exposure to the cause is no doubt due to the intensity of the poison—a view which is to a certain extent at least supported by the fact that the invasion of the disease under these circumstances is very apt to be abrupt; the attack being often ushered in with vomiting and purging or with grave cerebral symptoms. Sometimes, indeed, the gastro-intestinal symptoms have been so violent as to have given rise to suspicions of criminal or accidental poisoning. In the majority of cases, however, the period of incubation is probably very much longer than in those above referred to. In the outbreak which recently occurred in a farm-house about seven miles distant from Philadelphia, the history of which has already been given in detail, the second case began three weeks after the first, the other six following in rapid succession. In the celebrated epidemic which occurred at Lausen in Switzerland in 1872, and which is referred to by Cayley,43 the first ten patients were attacked within three weeks of the time when the contamination of the spring which supplied the village must have taken place, and these ten cases were followed in the course of nine days by fifty-seven others. In the town of Over Darwen 1500 persons were seized with typhoid fever within three weeks after a patient suffering from this disease was brought to a particular house, the sewage of which was allowed to soak into the ground through which the water-supply pipes of the town passed, and at a point at which they were leaky. Lothholz observed in an epidemic which occurred in the neighborhood of Jena that the average period of incubation was three weeks, the shortest period eighteen days, the longest twenty-eight days. Haegler found in three cases produced by contaminated water a period of at least three weeks.44 There are, however, epidemics on record in which the period of incubation was under two weeks, as, for instance, that of Basle, referred to by Liebermeister, in which a few persons were attacked who had only been in the city from seven to fourteen days. Cayley also refers to localized outbreaks of the disease, as those of Calne and Nunney, in which persons were attacked within fourteen days of their exposure to the cause. C. J. C. Muller of Posen45 says that the average period of incubation of the disease is fourteen days; that it may be not more than ten days, or, on the other hand, as long as from three to four weeks; and that he has known a case in which it was thirty-four days. Murchison believed that it was most commonly about two weeks, and William Budd arrived at the conclusion, from the observation of a large number of cases, that it varied from ten to fourteen days.

43 Brit. Med. Jour., Mar. 15, 1880.

44 Ziemssen's Cyclopædia, vol. i.

45 Neue Beiträge zur Aetologie des Unterleibs-Typhus, Posen, 1878.

From this review of the opinions of various authors the conclusion would seem to be justifiable that the period of incubation in typhoid fever is usually between two and three weeks, but that in many cases it does not exceed ten days, and in rare instances has unquestionably been very much less. On the other hand, there are authentic cases on record in which it is said to have reached, or even exceeded, twenty-eight days. Unfortunately, we do not possess any reliable data with which to decide the question whether it is shorter or longer when the poison is imbibed with the ingesta than when it is inhaled. It would seem, however, that there is a difference in the susceptibility of different individuals to the poison of this disease, in many persons a single exposure to the cause being sufficient to induce an attack, while in others the disease is contracted only after repeated exposure.

MORBID ANATOMY.—As a thorough knowledge of the morbid anatomy of typhoid fever is absolutely necessary to a correct understanding of its pathology, it seems to me better to deviate from the order usually observed in systematic treatises and to proceed at once to a description of the former, rather than to defer it, as it is usual to do, until after the symptomatology of the disease has been discussed.

Rigor mortis is generally more marked and more prolonged than after typhus. Emaciation is often extreme in cases in which death has taken place after the third week, especially if they have been attended by much diarrhoea and fever. No traces of the characteristic rose-colored eruption are found after death, no matter how profuse it may have been during life. Sudamina, on the other hand, persist, and discolorations of the dependent portions from settling of blood are always present in the dead body.

The lesions of typhoid fever may be divided into two classes. The first class includes certain changes in the glands of Peyer, the solitary glands of the intestines, the spleen, and other lymphatic structures of the body. These changes, which consist essentially in a medullary infiltration of these glands, will be minutely described presently. They are peculiar to the disease, and are just as characteristic of it as the condition of the lungs and their membranes found in pneumonia and pleurisy are characteristic of those diseases. They are usually most developed in grave cases, but occasionally they are slight and but little marked in cases in which the general symptoms were severe. They therefore cannot be regarded as the sole cause of the latter. It is more probable that they are themselves the results of the local action of the typhoid poison, and bear somewhat of the same relation to typhoid fever that the eruption in small-pox does to that disease. The second class is made up of lesions which are met with not only in this disease, but in other diseases accompanied by high fever, and are therefore unquestionably the result of the general process. They consist essentially of parenchymatous degenerations of various organs and tissues, and are generally more marked in typhoid fever because the pyrexia is not only of high grade, but also of longer duration than in other diseases.

We shall first consider the lesions peculiar to typhoid fever. Among the most important of these are the changes which occur in the agminated and solitary glands of the intestines. These have been usually described as passing through four stages, as follows: (1) the stage of medullary infiltration; (2) the stage of softening or sloughing; (3) the stage of ulceration; (4) the stage of cicatrization. These stages are said to last almost a week, and correspond to certain definite periods of the disease, but it is not uncommon to find in the same intestine glands in two or more of these stages. Indeed, the same gland may sometimes be found ulcerating at one side while cicatrization is going on at the other.

In the first stage the agminated glands are enlarged, each patch preserving its oblong shape, and being flattened on the surface and elevated from half a line to two lines above the surrounding mucous membrane, from which it is separated by an abrupt border, and which it may in a few cases overhang like a fungous growth. The solitary follicles are also swollen, and may vary in size from a hempseed to a split pea. In very severe cases all the glands may be more or less involved, but in mild cases the changes may be limited to three or four of the patches of Peyer, although the solitary glands rarely wholly escape. It is uncommon also for the latter to be alone affected, but a few such cases have been reported. In these the mucous membrane appears to be studded with pustules, and hence Cruveilhier designated this variety as the forme pustuleuse. The mucous membrane covering the affected glands is reddish-green in color, and that in their immediate vicinity is often injected. The changes above described occur early in the disease—Murchison has seen them in two cases in which death took place at the end of the first day—and they are often well marked at the end of the third or fourth day. They are usually limited to the glands in the lower part of the ileum, the agminated glands being often found perfectly healthy four feet above the ileo-cæcal valve. In mild cases, indeed, the lesions may be confined to those nearest to this valve. So, too, the changes in the solitary glands may be confined to the last twelve inches of the smaller intestine, but this is by no means universally the case, for these glands are not only often found enlarged higher up in the small intestine, but also occasionally in the cæcum. The agminated glands are sometimes found enlarged in the bodies of those who have died of measles and of some other diseases, but the degree of enlargement is rarely as great as in typhoid fever, and the further changes presently to be described are never found except in the latter disease.

Under the microscope the medullary infiltration upon which the enlargement of the glands depends is found to be due to proliferation of the cellular elements. In the case of the agminated glands this proliferation may be limited to the follicles or it may extend to the intercellular tissue, and even to the adjacent mucous membrane. In the former case the patches have a reticulated aspect; they are soft and but little elevated. These are the plaques molles of Louis and the plaques reticulées of Chomel. In the latter they are harder, smoother, and more elevated. To this variety Louis has given the name of plaques dures, Chomel that of plaques gauffrées. The morbid process is also very apt to extend from the solitary follicles to the surrounding mucous membrane.

In a large number of the glands in many cases, and probably in all of them in the abortive form of the disease, the changes never advance beyond the first stage, a restoration to their normal condition taking place by colliquative softening.46 The morbid material upon which their enlargement depends breaks down into an oily débris which is gradually absorbed. This retrograde process takes place faster in the follicles than in the interfollicular tissue, and, as pigment is very apt to be deposited in the depressions thus formed, the patches acquire an appearance which has been compared to that of a recently shaven beard. This appearance is met with, however, in other diseases, and is therefore not peculiar to typhoid fever.

46 Rindfleisch, Pathological Histology, Sydenham Society Translation, vol. i. p. 441.

The description of the changes in these glands in the subsequent stages of the disease which follows is taken mainly from Rindfleisch's work on Pathological Histology.

In the stage of necrosis small portions of single Peyerian patches, varying in size from that of a lentil to from three-quarters of an inch to an inch and a quarter in diameter, assume a yellowish-white, opaque tint instead of their former reddish and translucent aspect, gradually become separated from the surrounding tissue by a sharp line of demarcation, and then pass into a state of cheesy necrosis. Here and there the same changes are observed to have taken place in the solitary glands. When once this has occurred, recovery can only take place by expulsion of the necrosed parts and consequent ulceration. Necrosis of the glands probably rarely occurs before the beginning of the second week, but it has occasionally been observed much earlier. Murchison reports cases in which he saw it as early as the first and second days. The process usually involves the mucous membrane only, but it may extend to the muscular and even to the peritoneal coats.

In the third stage the dead parts are gradually thrown off, the process of separation usually occupying several days. At first an increased degree of congestion, followed by suppuration, is observed at the edges of the sloughs, which before their complete detachment may often acquire a yellow, green, or brown color from the imbibition of bile. The ulcers which result correspond in size and form with the sloughs. They are, therefore, in the case of the agminated glands elliptical in shape, with their long diameter corresponding to the axis of the intestine. Their edges are swollen and overhanging, and their floor is generally formed by the deepest layer of the submucous connective tissue. They sometimes penetrate much more deeply, and may even extend to the peritoneal coat, and thus give rise to perforation of the bowel. The ulcers which result from sloughing of the solitary glands are, as a rule, small and round. Murchison says that ulceration may also be produced in the following way: The mucous membrane becomes softened, and one or more superficial abrasions appear on the surface of the diseased patch, which extend and unite into one large ulcer, and this ulcer proceeds to various depths through the coats of the bowel, and even to completed perforation, but Rindfleisch and other recent German writers do not allude to this process.

The fourth stage, or that of cicatrization, usually commences with the beginning of the fourth week. The swelling of the edges of the ulcers gradually diminishes, and they become adherent to the tissues beneath. The floor of the ulcers covers itself with delicate granulations, which in course of time are converted into connective tissue. This is ultimately coated with epithelium, but neither the villi nor the glands of the mucous membrane are ever reproduced. The resulting cicatrices may be recognized by the affected parts of the bowel being thin and more translucent than in health, and may retain these characters after the lapse of several years. They never give rise to contraction of the bowel. The time occupied in the cicatrization of each ulcer is said to be about two weeks. It occasionally happens that while cicatrization is taking place at one end of the ulcer the process of necrosis and ulceration is still going on at the other, so that two or more ulcers may occasionally run together. This form of ulcer may often retard recovery, and may sometimes end in perforation of the bowel, even after convalescence seems to have been established.

The color and consistence of the mucous membrane of the cæcum and colon are in a large proportion of cases normal. In a few the membrane is paler than in health, and in others it is of an ash-gray color. It is also sometimes injected and softened. The solitary glands are frequently enlarged and ulcerated, like those of the ileum. In the former case the mucous membranes of the large intestine throughout its whole extent, but especially that of the cæcum and of the part of the colon adjacent to it, is studded with minute elevations about a line in diameter. When ulceration has occurred the ulcers are generally round and small, but they may occasionally be oval and of considerable size. In the latter case their long diameter will correspond in direction with that of the circular fibres of the intestine. Murchison has known them to measure fully an inch and a half in length. The colon is generally found much distended with flatus.

Enlargement of the mesenteric glands from cellular hyperplasia and hypertrophy of the connective tissue is constantly associated with the morbid changes of the intestines just described. This enlargement varies in different cases. In some the glands are not larger than a pea or bean; in others they are said to have reached the size of a hen's egg. It is always more marked in the glands which lie in the angle between the lower end of the ileum and the cæcum, and usually bears some proportion to the intensity of the local disease; but it is not to be regarded merely as a result of the local irritation, as it has been observed in parts of the mesentery corresponding to perfectly healthy portions of the intestine, and as the meso-colic glands have been involved in cases in which the colon was free from disease. It has, moreover, been observed in cases in which death has occurred very early in the disease, and there can therefore be little doubt that it is as much the result of the infective process as the infiltration of Peyer's patches. In addition to being enlarged, if death has taken place before the end of the second week the glands are hyperæmic and of a purplish color. Later than this, when the sloughs become detached from Peyer's patches, the swelling of the glands diminishes; they lose their color and become pale, and if convalescence ensues they return finally to their former healthy condition. Still, Murchison has seen them shrivelled and pale or bluish for some time after convalescence. In other cases the substance of the glands softens, with the formation of a puriform liquid. If the softening only involves a small part of the glandular structure, restoration to health may take place through the absorption of this liquid. If it is more extensive, the whole of the glands may break down into this puriform liquid, which, when the patient recovers, undergoes caseous and finally calcareous degeneration. Occasionally, a gland in this condition is the cause of death from rupture and extravasation of its contents into the cavity of the peritoneum.

The glands in the fissure of the liver, the gastric, lumbar, inguinal glands, and indeed all the lymphatic glands in the body, have occasionally been found swollen and congested, but their enlargement cannot be classed among the specific lesions of the disease, but is merely the result of a local irritation. Thus, Jenner says that in the case of extensive ulceration of the oesophagus which came under his observation there was marked enlargement of the oesophageal glands. Liebermeister says that the lymphatic follicles which surround the glands at the root of the tongue and in the tonsils are often affected in the same way as the glands. In most cases after a time the swelling disappears, but sometimes softening and rupture take place.

The spleen is almost invariably found to be increased in volume and to have undergone changes in consistence and color. The degree of enlargement and the other changes vary of course with the stage of the disease at which death has occurred. The enlargement occurs with less frequency in elderly than in young people, and is most marked at the height of the disease, the organ being then often twice or three times its normal size, and in some cases, it is said, even larger. Later, and especially during convalescence, the enlargement has generally very much diminished. During the first ten days of the disease the spleen is generally tense and firm, engorged with blood, and dark red in color. Between the tenth and thirtieth days its appearance remains the same, but the organ is found to be soft and friable. During convalescence it becomes paler and firmer again, and is often so shrunken in size that its capsule is relaxed and wrinkled. Hemorrhagic infarctions are often met with. These sometimes soften and break down into a puriform liquid, which may sometimes cause peritonitis by rupture into the peritoneal cavity. Rupture of the spleen is also said to have occurred from mechanical violence. These changes are due in part to variations in the amount of blood, and in part to a medullary infiltration of Malpighian corpuscles similar to that which takes place in Peyer's patches and the glands of the mesentery.

LESIONS WHICH ARE NOT PECULIAR TO TYPHOID FEVER, BUT ARE OF MORE OR LESS FREQUENT OCCURRENCE.—The mucous membrane of the pharynx and oesophagus may present a perfectly healthy appearance, but occasionally it is congested and the seat of ulcerations which are for the most part superficial. Sometimes, however, they have been found to extend to the muscular coat, but they have never been known to penetrate all the coats of these organs. Jenner refers to one case in which there was extensive ulceration of the oesophagus, but usually the number of ulcers is not large. In a few cases the mucous membrane of the pharynx is coated with diphtheritic false membrane, and the submucous tissue is infiltrated with serum and pus (Murchison).

The stomach and the upper part of the intestinal tract present no lesions which are at all peculiar to typhoid fever. In a certain number of cases congestion, softening, and even superficial ulceration, of the mucous membrane of the stomach, and less frequently of that of the duodenum, have been found. The mucous membrane of the jejunum and of the upper part of the ileum is not usually much reddened, and may be even paler than in health. In cases which have been protracted it may be of an ashy-gray or slate color. The contents of this part of the intestinal tract, which is rarely much distended by flatus, do not differ materially in appearance or consistence from the matter which generally composes the typhoid stool. The bowels may, of course, be found filled with blood in cases in which a recent hemorrhage has taken place. Invaginations of the small intestines, unaccompanied by any evidences of inflammation, are occasionally met with in the bodies of those who have died of typhoid fever. They are produced, there is good reason to believe, during the death agony, but are not peculiar to this disease, as they occur in many other diseases.

Enlargement of the liver has been found in only a few cases after death from typhoid fever. Softening is more common, but even this is not a frequent result of the disease, for it was absent in 41 out of 73 cases examined with special reference to this point by Louis, Jenner, and Murchison. The organ is occasionally hyperæmic, and darker in color than in health, but it is oftener pale or normal in appearance. Even, however, where it appears to be perfectly healthy to the unassisted eye, the microscope shows that its cells are very granular and filled with oil-globules which often render the nucleus indistinct or completely conceal it. When death has taken place at an advanced stage of the disease many of the cells are found to be completely broken down into a granular detritus. These changes are usually proportional to the degree of pyrexia which has been present during life. Rarer lesions of the liver are pyæmic deposits, embolism, abscess, and emphysema.

The mucous membrane of the gall-bladder has been found to be the seat of ulcers by Jenner and numerous other observers. It also occasionally presents the evidences of catarrhal or diphtheritic inflammation. The gall-bladder usually contains a pale watery liquid of a less density than bile. When, however, inflammation of its lining membrane has existed, its contents are mixed with pus and shreds of false membrane.

The mucous membrane of the larynx is sometimes found to have been the seat of catarrhal or diphtheritic inflammation, and sometimes also of ulceration. Jenner says that in typhoid fever laryngitis independent of pharyngitis is extremely rare, but the German writers express a different opinion. Griesinger estimated that laryngeal ulcers were present in one-fifth of the fatal cases. Hoffmann found them twenty-eight times in two hundred and fifty autopsies, and that the ulcers had extended to and involved the cartilages in twenty-two out of the twenty-eight cases. They are most commonly found in the posterior wall of the larynx, and may involve the vocal cords. These are often discovered after death in cases in which their existence was not suspected during life. They were formerly supposed to be the result of typhoid infiltration of the laryngeal glands, but careful investigation has shown that they are the consequence of diphtheritic inflammation of the mucous membranes. Inflammation and ulceration of the trachea are comparatively rare. Hypostatic congestion and infarction of the lungs are not uncommonly found after death from typhoid fever, and less frequently the lesions of pneumonia. Evidences of recent pleurisy are also discovered in a few cases. Acute miliary tuberculosis of the lungs is more often met with as a sequela than as a complication.

The changes in the brain and its membranes caused by typhoid fever are few and unimportant, even in cases attended by severe nervous symptoms. Those most frequently found are adhesions of the dura mater to the inner surface of the cranium, injection or oedema of the pia mater, congestive oedema, and sometimes softening of the brain and effusion at the base of the brain. The microscopic changes do not appear to have been carefully studied. Liebermeister says that the gray substance of the cortical portion of the brain and of the interior is sometimes of a rather yellowish-brown color, and that he noticed besides diffuse yellow and blackish-brown spots in different places, particularly in the corpus striatum and thalamus opticus. In such places, he says, the microscope shows a diffuse yellow coloration, a deposit of small brown pigment-granules, and also, especially in the optic thalamus and corpus striatum, the ganglion-cells thickly crowded with brownish or blackish pigment-granules in such numbers as to conceal the outlines of many of the cells. These changes Hoffmann,47 who has specially studied them, is inclined to place by the side of the parenchymatous degeneration of other organs. The ganglion-cells of the sympathetic ganglia are said by Virchow also to contain an unusual amount of pigment.

47 Quoted by Murchison.

The muscles are frequently the seat of marked changes in typhoid fever. Their macroscopic appearances vary with the stage of the disease at which they are examined. When death takes place in the first or second week they are usually dark red or reddish-brown in color, and very dry. If it is delayed until later, they "present a peculiar fawn or yellow tint permeating the ordinary red in patches and veins not unlike the appearance of veined marble." Their consistence is also so much diminished that the finger may be readily passed through them. Occasionally, pseudo-abscesses and hemorrhages into the muscular sheath are found, and Dauvé and B. Ball48 report cases in which, in addition to these changes, rupture of muscles had occurred. Zenker, who was the first to call attention to them, ranged the changes seen under the microscope under two heads: (1) granular or fatty degeneration; (2) waxy degeneration. In the first variety the transverse striæ disappear and the sarcolemma appears filled with finely granular matter. In the second variety the striated muscles become, as it were, pervaded by a coagulating material which sets, and in contracting breaks up the fibres into great numbers of short waxy-looking lumps, not unlike a certain variety of casts of the tubuli recti of the kidneys. When recovery takes place the affected fibre is believed to be regenerated by a cell-growth within the sarcolemma. These changes occur in most fevers, as typhus, small-pox, scarlet fever, and are attributed by authors generally to the hyperpyrexia which is a frequent accompaniment of these diseases. Hayem, however, asserts that he has found them well marked in cases not characterized by a high temperature, and that, on the other hand, they are sometimes absent in cases where this has been present. The waxy form of degeneration may affect all the striped muscles, but is oftenest seen in the muscles of the abdominal walls, the adductors of the thigh, the muscles of the diaphragm, and tongue.

48 L'Union Médicale, 1866, quoted by Biennial Retrospect of Medicine and Surgery and their Allied Sciences, for 1865-66.

The heart, in common with the other muscles of the body, suffers from both the forms of degeneration above described, but the granular form appears to be more common than the waxy. In protracted cases it is usually much softened, and when thrown upon a plate no longer retains its form. It has usually lost its normal color and acquired the tint described by the French as feuille morte (faded leaf). Upon minute examination the degeneration is found to have taken place in patches, the diseased fibres being found alongside of others which have scarcely undergone any alteration. These patches are especially common in the papillary muscles of the mitral valve—a fact which explains the occasional presence of systolic murmurs in typhoid fever. In addition to the microscopic appearances of the muscles already described, Hayem49 has observed in his examinations of the heart a cellular infiltration of the connective tissue and a proliferation of the muscle nuclei. These changes are sufficient in his opinion to establish the existence of myocarditis. The same observer thinks he has also found evidences of the frequent occurrence of endoarteritis in the multiplication of the cellular elements of the internal coat of the small arteries, which he has discovered under the microscope.

49 Leçons cliniques sur les Manifestations cardiaques de la Fievre typhoide, Paris, 1875.

Some discrepancy of opinion exists in regard to the condition of the blood in typhoid fever. Trousseau, for instance, speaks of it as being profoundly altered and in a state of dissolution; Liebermeister says that at the height of the disease the blood is very dark-colored, and that after coagulation it presents a small and soft clot; and Murchison, that a dark, liquid condition of the blood is rarer than in typhus, and that fine white coagula are more common. Harley too has frequently found firm colorless clots of fibrin in the heart and roots of the great vessels in subjects dead in the third week of the disease. Forget concludes from an examination "of one hundred and twenty-three specimens of blood derived from patients in all stages of the disease that an appreciable alteration of the blood in the several periods of enteric fever cannot be accepted as a general fact; that the blood is rarely altered in the first period; that the alteration is more marked in proportion as the disease is more advanced; that the alteration is not always in proportion to the gravity of the disease."50 I have myself seen the disorganization of the blood as complete in severe cases of typhoid fever which have rapidly proved fatal as in cases of diphtheria or of other malignant diseases. On the other hand, in protracted cases and during convalescence the blood is often thin and watery.

50 Quoted by Harley, Reynolds's System of Medicine, vol. i.

The kidneys are sometimes engorged with blood, sometimes pale and flabby. Under the microscope the appearances are similar to those just described as occurring in the liver, and it is therefore unnecessary to refer to them more fully here. As a rule, the epithelium becomes granular earlier and to a marked degree in the cortical than in the tubular portion. The absence of albuminuria must not always be accepted as proof of a healthy condition of the kidneys, as this symptom has been wholly wanting in cases in which the organs have been extensively diseased.

Analogous changes have also been observed in the salivary glands and pancreas, except that, according to Hoffmann, a cellular proliferation precedes the degenerative process.

CLINICAL DESCRIPTION.—The invasion of the disease is usually so gradual that it is often impossible to obtain from patients exact information as to the time of the beginning of their illness. Among those who present themselves for treatment at the Pennsylvania Hospital it is not uncommon to find that many have suffered for several days, it may be as long as a week, or even longer, before taking to their beds, from vague feelings of discomfort, from headache more or less intense, aching pains in the back or limbs, or from sensations of chilliness alternating with flashes of heat. In other cases derangements of the digestive system are more prominent, such as nausea, or even vomiting, diarrhoea, or irritability of the bowels. Notwithstanding these symptoms, and the indisposition to exertion engendered by them, they have frequently continued to follow their usual avocations up to the time of their application at the hospital for admission. There is generally, however, no difficulty in recognizing at once the nature of their disease. Upon examination the pulse is found to be frequent, the respiration accelerated, the tongue furred, the skin hot and dry, and the abdomen tympanitic.

Among patients whose position in life enables them to pay greater attention to trifling symptoms than those who are compelled to seek hospital relief, opportunity is frequently afforded to the physician to study the disease at a period less remote from its commencement. The symptoms it presents when seen as early as the second day are generally of a very indefinite character. There may be a feeling of malaise, headache with a tendency to giddiness, pain in the back and limbs, a slightly coated tongue, thirst, and anorexia. The patient may complain of chilly sensations alternating with flashes of heat, but it will rarely be found that the attack has commenced with a decided chill. Diarrhoea may also be present at this time, or may not supervene until later. Even in cases in which it is absent the bowels will generally act inordinately after the administration of a gentle purgative. Occasionally, the attack begins with vomiting, but this is not, in my experience, a frequent mode of commencement. If the visit be made in the morning, the febrile symptoms will be little marked, the pulse being only slightly accelerated and the temperature being rarely more than from a half to a degree above the normal. In the evening, however, the thermometer usually indicates a greater elevation of temperature.

At subsequent visits the same symptoms are presented. It will be observed, however, that the fever is decidedly remittent in character, the evening temperature being always from a degree to a degree and a half higher than that of the morning, while the temperature of each succeeding day is a little higher than that of the day which preceded it. The patient is restless and wakeful at night, or sleep, when obtained, is unrefreshing and disturbed by dreams. He grows dull and slightly deaf, and although able to answer questions intelligently when roused, does so with an effort, and soon after lapses into his former condition. Although obviously growing weaker every day, it is sometimes difficult to get him to take to his bed. The diarrhoea continues and increases in severity; the stools become watery in character and ochrey-yellow in color; they may exceed six, or even twelve, in the twenty-four hours. Epistaxis either consisting of a few drops of blood only, or so profuse as to endanger life, may also occur during the first week. Examination of the abdomen toward the middle or close of the first week will almost always reveal the existence of tympany and of tenderness and gurgling in the right iliac fossa, and very frequently also of slight enlargement of the spleen. The urine at this stage of the disease is dense, scanty, and of high color. The tongue too will be observed to be more heavily coated than at first, and to be dryish, the fur being disposed on the middle of the dorsum of the organ, while the tip and edges are free from it and abnormally red in color. Usually, toward the close of the first week, the pulse will be found to be between 100 and 120 in frequency. It often, however, does not attain this frequency, and in some cases does not exceed 50 throughout the whole of the attack. At the same time, the thermometer generally indicates a temperature of from 102° to 104°, and in bad cases even one much higher than the latter.

These symptoms are not pathognomonic, but Murchison regards their existence in a young person as warranting the suspicion that he is suffering from this disease. About this time, however, or, to speak more accurately, usually from the seventh to the twelfth day, a new symptom occurs which is more characteristic. This is an eruption of isolated rose-colored spots, the tâches roses lenticulaires of Louis, occurring principally upon the surface of the abdomen, but not infrequently seen also upon the chest, back, limbs, and even, according to some authors, upon the face. They are round in shape, with a well-defined margin, usually about a line in diameter, but sometimes considerably larger, slightly elevated above the surface, and disappearing upon pressure, but returning when the pressure is removed. They can almost always be found at this stage of the disease if diligently sought for.

If the disease tends to run a severe course, all the symptoms become aggravated toward the end of the second week. The tongue grows dry and brown, the pulse more frequent, feeble, and markedly reduplicated in character, the diarrhoea still more severe, and the fever higher than before, with little or no tendency to remit in the morning. The nervous symptoms also come into prominence. The headache may grow more violent or may be replaced by increased dulness, which may sometimes be so decided as to render it difficult to fully rouse the patient. At other times delirium is a prominent symptom. This may only occur at night, but not infrequently is observed during the daytime as well. It is usually more active in character than that which accompanies typhus. Trembling of the tongue and of the limbs is not uncommon at this time. The urine becomes more abundant, paler, and less dense than before. Even in cases characterized by symptoms as severe as those above detailed some improvement is, however, often observed to take place between the fourteenth and twenty-first days. The morning remission becomes more decided, the evening temperature less high than that of the preceding day; the stools lessen in number, and gradually assume a more healthy appearance; the pulse diminishes in frequency and gains in force; the tongue becomes moist, and shows a tendency to throw off its fur; the trembling grows less marked; the dulness and delirium lessen; and the patient falls into a refreshing sleep. In other cases, in many of which recovery eventually takes place, there is at this time, instead of an improvement, a still further aggravation of the symptoms. The pulse becomes more feeble and frequent; the tongue is not only excessively dry and brown, but shrivelled and fissured; the lips and teeth are encrusted with sordes; the stools contain shreds of membrane, and often blood; the subsultus tendinum increases; carphololgia, or picking at the bed-clothes, occurs. The prostration becomes so extreme that the patient frequently slips down in bed from sheer weakness. The active delirium of the previous stage is replaced by the low muttering form, or the patient lies upon his back with his eyes half closed in a semi-unconscious condition, from which he is with difficulty aroused, and which may deepen into coma. Occasionally, however, the active delirium continues, and is associated with an obstinate wakefulness; the urine and feces are passed involuntarily, or, with an apparent incontinence of the former, there may be retention, which is very apt to be overlooked. If these symptoms continue for any length of time, bed-sores may form not only over the sacrum, but on other parts subject to pressure, and the patient, worn out by long-continued suffering, dies from exhaustion.

Occasionally, in the midst of these symptoms, and sometimes even in cases in which the condition is not so alarming, prostration approaching collapse, without obvious cause, suddenly supervenes. The pulse becomes a mere thread, the surface is bathed in a clammy sweat, and the temperature is found to have fallen from four to seven degrees, and in some cases even more. These symptoms almost always indicate that intestinal hemorrhage has taken place, and are followed by the discharge of blood either in the course of a few hours or not until a day or two subsequently. If the hemorrhage be moderate in amount, and does not recur, reaction usually takes place in a short time; but if, on the other hand, it is profuse or frequently repeated, death may occur, either immediately or later, as the result of the exhaustion it has induced. Very much the same set of symptoms attend the occurrence of perforation of the bowel, an accident which is also liable to happen in the course of typhoid fever, but which may generally be distinguished from intestinal hemorrhage by its being accompanied by a sharp pain in the abdomen, which is frequently so severe as to cause the patient to cry out, by its not being attended with the same reduction of temperature, and by the absence of blood in the discharges. In a day or two all doubt will be set at rest, if the case be one of perforation, by the occurrence of general peritonitis.

A fatal termination is by no means the usual result, even in cases in which the disease has assumed its worst features. Indeed, it may be said that there is no condition in typhoid fever so grave that recovery from it is impossible. Many authors would make perforation of the bowel an exception to this general rule, but there are observations on record which would seem to show that this accident is not invariably fatal. Even in cases in which the patient has lain helplessly on his back in a semi-unconscious or comatose condition, passing his discharges under him, the physician will often be gratified to find at one of his visits some evidence of improvement, trifling as it will probably be. It may be only a slight change of position, an inconsiderable fall of temperature, or a scarcely appreciable moistening of the tongue; but these changes, insignificant as they apparently are, are sufficient to indicate to the practised eye of the observant physician the approach of convalescence. Next day there will be a still further reduction of temperature, a more decided moistening of the tongue, a sensible diminution of the nervous symptoms, and a reduction in the frequency of pulse. In this condition, however, as may be readily imagined, convalescence may be retarded by numerous accidents, and life may hang trembling in the balance for several days, or even weeks, before it is fully established. It is not necessary to recount here the various steps by which a return to health is reached, as they are essentially the same as those which mark the convalescence of the less severe variety of the disease, and have already been fully referred to in the description of that form.

But even after the establishment of convalescence, and after the patient has been free from fever for several days, febrile attacks lasting for a day or two, or even longer, may occur as the consequence of very slight causes, such as undue excitement, or fatigue of any kind, or the immoderate indulgence of the appetite, which in this condition frequently needs to be restrained. These attacks are usually spoken of as recrudescences of fever, and do not differ materially from attacks of irritative fever occurring under other circumstances. They usually subside under appropriate treatment with the removal of their cause, but leave the patient somewhat weaker than they found him. In other cases, it may be a week or ten days after the fall of the temperature to the normal, and frequently at a time when all danger seems to have been passed, a true relapse of the disease occurs. In this, of course, all the symptoms of the primary attack are reproduced, including even the eruption of rose-colored spots. The temperature usually, however, attains the maximum more rapidly, and the duration of the fever is generally shorter, than that of the original attack. A second relapse is also not very uncommon, and even a third may occur. Various complications and sequelæ also occur in the course of typhoid fever, which will be referred to fully hereafter.

Another form of the disease, which it may be well to allude to briefly here before closing the general description of the disease, is the abortive form. In this variety the attack begins and runs its course up to a certain point, including often even the occurrence of the eruption, as it does in the majority of cases; but at a period which varies between the seventh and fourteenth day the symptoms suddenly subside and the patient rapidly convalesces. In some cases it may be difficult to distinguish this form from an attack of simple continued fever, and, in fact, in cases in which the eruption is absent it will be impossible, unless other cases of typhoid fever have occurred in the same house or family, or unless the patient has been unmistakably exposed to the influences under which the disease arises.

In a few cases the disease begins abruptly with a chill, intense headache, or with gastro-intestinal symptoms, which have in rare instances been so violent as to have suggested to the mind of the attending physician the possibility of corrosive poisoning. This, according to Chomel, is the most frequent mode of commencement, but his experience on this point is opposed to that of the great majority of observers.

I shall now proceed to describe in detail some of the most important of the symptoms presented by the disease.

Even in the beginning of an attack of typhoid fever the face has a listless and languid expression, although the eyes are usually bright and the pupils dilated. In mild cases no further alteration of the physiognomy than this may be noticeable throughout the whole course of the disease, but in bad cases, when the typhoid condition is fully developed, the expression becomes dull and heavy. There is, however, never the general suffusion of the face seen in typhus. On the contrary, the face is often pallid, or there is at most a circumscribed flush on one or both cheeks, which is most marked during the exacerbations of fever or after the administration of food and stimulants. During convalescence the effects of the long illness are fully visible in the face.

Prostration, or loss of muscular strength, is present from the beginning in a large number of cases of typhoid fever, but is generally not so marked in the early stages as in typhus fever. It is usually most intense in grave cases, but to this rule there are numerous exceptions. It is not rare to find patients, in whom the other symptoms are severe, able to sit up in bed, and even to rise to stool, throughout the attack. Bartlett records a case in which the patient did not confine herself to bed until the occurrence of perforation, and I have had under my care a man who, supposing he was suffering only from a slight diarrhoea, performed the duties of a nurse in a military hospital until two days before his death, although the autopsy showed very extensive ulceration of the intestine. Several cases have come under my care in the second week in which patients have walked a considerable distance to make application for admission to a hospital. Generally, however, the prostration becomes extreme in the third and fourth weeks of bad cases, the patient lying helplessly on his back, and frequently slipping down in bed from sheer weakness.

Epistaxis may occur at any stage of typhoid fever, but is most common in the forming stage. Observers differ in opinion in regard to its frequency. Murchison noted it in only 15 of 58 cases, and gives it as his belief that it is more common in France than in England or this country. Flint found that it had occurred in 21 only of 73 cases, and Jenner in 5 of 15 fatal cases. On the other hand, Bartlett says that it is quite a common symptom, and Wood and Gerhard, from the frequency with which they had met with it in the beginning of the disease, were accustomed to regard its presence as of importance in a diagnostic point of view. Part of this divergence of opinion is probably due to the fact that it is usually small in amount, and therefore very apt to be overlooked. I have in many cases, after having been told there had been no epistaxis, found the evidence of it upon the fingers or bed-clothes of the patient. It may, however, be so profuse as to endanger life and render necessary the use of the tampon. Except in the latter case it is without influence upon the course of the disease.

The skin may be almost constantly dry as well as warm throughout the whole course of the fever in a small proportion of severe cases. But, on the whole, perspiration occurs with greater frequency in typhoid fever than in any other acute disease, unless it be rheumatism. It takes place most commonly at night after the evening exacerbation, or in the morning when the patient awakes from sleep, but it is not very rare to find the skin clammy at other times. The sweating is usually general, but in a few cases it is local only. When colliquative, it is frequently exhausting, and is then a grave symptom. It is sometimes prolonged into convalescence, when it is not only annoying, but in consequence of the prostration it induces may sometimes retard the restoration to health.

I have never been able to satisfy myself that any peculiar odor is given off by the skin in typhoid fever, and most observers make a similar statement. Chomel, however, asserted that the perspiration has a strong acid odor, and Bartlett agreed with Nathan Smith in thinking that typhoid fever patients exhale a peculiar odor, not pungent and ammoniacal, like that of typhus, but "of a semi-cadaverous and musty character," which is especially noticeable during the later stages of severe and fatal cases.

The eruption is one of the most characteristic symptoms of the disease. Indeed, in many cases, without it the diagnosis would be impossible. It is rarely absent in a well-developed case. Murchison says that it was noted in 4606 cases only out of 5988 admitted into the London Fever Hospital in twenty-three years, but admits that it would probably have been found in some of the others if it had been properly looked for. Wood says that he has seldom met with cases in which it was absent. It is oftener absent in children than adults—a circumstance which makes the diagnosis of the disease in the former often a matter of great difficulty. It consists of isolated rose-colored spots, slightly elevated above the surface, circular in form or nearly so, having well-defined margins, usually about a line in diameter, but sometimes varying from half a line to two and even three lines in diameter, and disappearing on pressure, to return when the pressure is removed. They are generally first observed some time between the seventh and fourteenth days, but cases are on record, especially in children, in which they are said to have appeared much earlier, and others in which they could not be discovered until the twentieth day. In the latter cases, however, it is not improbable they had really been present at an earlier period, but had escaped detection. The eruption occurs in crops at intervals of three or four days, each spot lasting from three to five days, and the whole duration of the eruption being usually from ten to twenty, and varying of course with the severity of the attack. It may continue to appear as late as the twentieth day, and in cases of relapses very much later. Spots are sometimes seen on the abdomen or elsewhere after the subsidence of fever, and whenever seen indicate that the diseased process is not at an end. They are usually scattered over the lower part of the front of the chest and the abdomen, but are also not infrequently met with upon the back, and if they are not found upon the abdomen, the patient should be gently turned upon his side and this part of his body carefully examined. When very abundant they are often also seen upon the extremities, and occasionally even upon the face. Wood has seen them abundant on the upper and inner part of the thigh, and confined to that place. When tardy in making their appearance, they may often be brought out by application of a mustard plaster or by that of heat in any form; and it is probably, therefore, owing in large measure to the warmth of the bed that they are often so fully developed upon the back. In number they may vary from two or three to several hundred. In one case Murchison counted one thousand, and in three cases which came under my care in the winter of 1881-82 the body was so thickly covered by spots of an unusually large size that when I first saw the patients I directed them to be isolated under the fear that the disease would prove to be typhus fever. When very numerous the edges of two or three of the spots may run together, giving the eruption an irregular character. No relation between the copiousness of the eruption and the severity of the disease has ever been proved to exist. While the prevailing impression, therefore, that cases in which the eruption is freely developed are apt to be of a mild character, is true in many instances, it is by no means so in all. The three cases above referred to all ran a severe course, and one of them proved fatal. The spots disappear after death, and are rarely converted into petechiæ, but in bad cases I have seen purpura spots, and even vibices, developed independently of them. Sometimes the appearance of the eruption is preceded for a day or two by a delicate scarlet rash, which Tweedie says resembles roseola and has been mistaken for scarlet fever.

Sudamina, so called from their resemblance to sweat-drops, also occur not infrequently in this disease. They are minute vesicles, often not larger than a pin's head, but sometimes two lines in diameter, and occasionally, in cases in which two or three have coalesced, much larger. They usually contain at first a clear serum, which may, however, subsequently become turbid, and when very minute must, in consequence of their transparency, be viewed obliquely to be seen. Frequently, when they cannot be distinguished by the eye, they are readily detected by the touch. They rarely occur before the twelfth day, and often not before the close of the third week. Their most usual seat is the neck, the folds of the axillæ, and the groin, but there is no part of the body except the face in which they may not occur. They are most frequently seen in those cases attended by profuse sweating, and are by no means peculiar to typhoid fever, but are met with in other diseases—as, for instance, acute rheumatism—which are attended by this symptom. They are generally followed by branny desquamation of the cuticle in the position they have occupied.

Spots of a delicate blue tint—the "taches bleuâtres" of French writers—are sometimes observed on the skin in cases of enteric fever. They must be of infrequent occurrence in this country, for, although I have looked carefully for them in every case that has come under my care, I have rarely been able to detect them. According to Murchison, "they are of an irregularly rounded form and from three to eight lines in diameter. They are not in the least elevated above the skin, nor affected by pressure, even at their first appearance. They have a uniform tint throughout their extent, and they never pass through the successive stages observed in the spots of typhus. Two or three of them are sometimes confluent. They are most common on the abdomen, back, and thighs." They are said in some cases to be distributed along the course of the small cutaneous veins, and to occur most frequently in cases which are mild. They are met with in other diseases, and usually precede in appearance the characteristic eruption of typhoid fever.

The hair is very apt to fall out after an attack of typhoid fever. The nails suffer in their nutrition in common with other parts of the body—a fact which may be recognized by the peculiar markings which are found upon them after recovery, and to which attention has been particularly drawn by Morris Longstreth in a paper in the Transactions of the College of Physicians of Philadelphia, vol. iii., 3d Series.

The circulation is usually accelerated from the beginning of an attack of typhoid fever. The degree of acceleration is commonly proportioned to the severity of the other symptoms, and especially to the elevation of the temperature, and is generally more marked in the evening than in the morning. It is subject, however, to numerous variations, not only in different cases, but even in the same case from day to day, and even from hour to hour. Murchison refers to a case in which the pulse sank to 37, and never exceeded 56 during the fever, although it rose to 66 during the convalescence. I have never had the opportunity myself of observing such an infrequent pulse in the febrile period of the disease, but have had cases under my care in which the pulse often fell below 60, and in which it never exceeded 80 until after the commencement of convalescence. A comparatively infrequent pulse may coexist with a high temperature. Thus, for example, a pulse of 80 was noted in one of my cases at the same time that the thermometer showed that the temperature was 105°, and on another occasion in the same case the pulse was 82 and the temperature 104½°. As a rule, the pulse is more frequent in cases which terminate fatally than in those which end in recovery; but to this rule there are numerous exceptions. In eight of Louis's cases it never went above 90, and in some of my own it did not reach 100 on more than one or two occasions. On the other hand, in mild cases the pulse may be exceedingly frequent, reaching, and even exceeding in many cases, 120. When the disease is prolonged and the prostration is extreme, a pulse of from 140 to 150 is not uncommon. In the majority of cases which have come under my care the pulse has varied in frequency from 80 to 120. In some cases the range has been between these two figures, in others it has been very much less.

During convalescence the pulse usually gradually diminishes in frequency, and may sometimes fall below the normal standard. I have known it in a few instances to fall to 38, and have often met with pulses ranging between 40 and 60 at this period. In other cases, on the contrary, the pulse continues frequent during convalescence, or readily becomes so after a slight exertion or excitement of any kind. A slow pulse during convalescence has been in my experience most frequent in men whose health previous to the attack was good, and a frequent pulse in women and delicate men. If the convalescence is retarded by a complication, the pulse will maintain its frequency until this is removed.

The pulse will of course present other changes than those above referred to. It is in the beginning firm and full, but after the first week becomes small and compressible, and acquires the peculiarity known as reduplication. Sometimes, when this is not well developed, it will be rendered quite distinct by elevating the patient's arm. Irregularity or intermission of the pulse, although not commonly observed in this disease, occasionally occurs. The heart's action will also be observed to grow feeble in the course of severe cases, and its first sound indistinct, but neither of these changes is as marked in typhoid as in typhus fever. Hayem asserts that in a certain number of cases a systolic bellows murmur, with its point of greatest intensity at the apex, is heard during the course or at the close of the second week. This murmur is sometimes soft in the beginning, but becomes harsh and intense later, or may have these characters from the start to such a degree as to give the impression that endocarditis exists. During convalescence an anæmic murmur is not infrequently present.

The respiratory movements are accelerated in typhoid fever, as they are in all febrile conditions, independently of any disease of the lungs, and their frequency is generally proportional to that of the pulse. In looking over my records of cases I find that the former are less liable to fluctuate from day to day than the pulse, and that when the latter becomes abnormally infrequent they do not sink below the standard of health. In several cases of which I have notes the respiration was from 20 to 28, while the pulse was below 60, and in a case referred to by Murchison the pulse was 42 at the same time that the respirations, although no pulmonary lesion could be discovered, were 48. The respiration is often, as in the case just alluded to, very much accelerated when the most careful examination of the chest will not lead to the detection of any disease there. This is sometimes the consequence of very great tympanites, which, by interfering with the descent of the diaphragm, gives rise to dyspnoea, but it may also occur as a purely nervous phenomenon. The air expired by patients has been examined, and has been found sometimes, in the later stages of the disease, to contain ammonia.

Bronchitis is so common an accompaniment of typhoid fever that auscultation rarely fails to reveal its presence in some form or other. In some cases there may be only slight harshness of the respiratory murmur at the base of the chest, but in a large number of cases the auscultatory signs will be sonorous, sibilant, and mucous râles. The last named may be so numerous that I have known the disease in the beginning mistaken for acute bronchitis, and even acute phthisis, by accomplished diagnosticians.

Headache is one of the most constant symptoms of typhoid fever. Bartlett says that it is rarely absent, Louis found it in all but 7 of 133 cases, and Jackson noted it in nearly all his cases. It is often the first symptom of which the patient complains, and, when not present at the beginning of the attack, makes its appearance soon after. It is almost as common, although less severe, in mild cases as in grave ones. It sometimes persists throughout the attack, but oftener subsides at the close of the first week or toward the middle of the second, or the patient may cease to complain of it in consequence of the dulness which is very apt to supervene. It is usually referred to the forehead and temples, but may extend over the whole head. It is usually dull and heavy, but in a few cases is throbbing. It is said by authors rarely to be severe, but I have known it so intense and acute as to cause the disease at its commencement to be mistaken for meningitis, and Jackson asserted that it is sometimes so severe that local bloodletting, and even venesection, had to be employed for its relief. It would appear to be as common in children as adults.

The headache is sometimes accompanied by vertigo and dizziness, and even by retraction of the head. Distressing pains in the back and limbs may also occur, and in rare cases even contraction of the hands and feet.

In the beginning of an attack of typhoid fever the patient usually suffers from wakefulness and restlessness at night, and it occasionally happens that the wakefulness becomes a distressing symptom. But in a great many cases, sooner or later in the course of the disease, drowsiness supervenes. In mild cases this symptom is late in making its appearance, and is generally slight and evanescent, but in grave cases it may come on as early as the eighth day, and when once present may gradually become more profound until it deepens at last into unconsciousness. It usually persists until the occurrence of death or of convalescence, but may alternate with periods of delirium, the delirium being more frequent at night and the somnolence by day. It is as frequent in children as in adults. Occasionally, the wakefulness of the earlier stage may reappear at the beginning of the third week, and coexist with muttering delirium, or occasionally with delirium of a more violent character. It then constitutes a most unfavorable symptom, the patient frequently passing several days and nights in incessant agitation, and sinking finally from exhaustion due to want of sleep.

Some degree of mental hebetude is rarely absent, even in the mildest cases of typhoid fever, and is usually among its earliest symptoms. It may, however, be absent occasionally in cases which run a severe course. It exhibits itself in the beginning in an indisposition to be disturbed, a slight inability to fix the thoughts, or a loss of memory. Generally, the patient will be able at first, by an effort, to rouse himself from this apathy, but the moment he relaxes this effort will lapse into his former condition. As the disease progresses the hebetude becomes more profound and is overcome with greater difficulty. In mild cases it may continue until the occurrence of convalescence, but in grave cases it is soon lost in delirium. This is one of the commonest symptoms of the disease. If I should rely solely upon my own experience, I should say that it was rare for any but the mildest cases to run their course without its occurring at some time or other. Louis found, however, that it was absent in 32 cases, 8 of which were fatal, out of 134 cases, and Murchison in 33 cases, 3 of which ended in death, out of 100 cases. In 8 of these fatal cases death was due to perforation—a fact which would seem to show, as suggested by James C. Wilson, that this symptom is not dependent upon the intensity of the local disease alone. The delirium of course varies with the severity of the other symptoms, and especially with the intensity of the fever. In its mildest form it consists of a slight confusion of ideas, which is readily dissipated by fixing the patient's attention, and is most apt to occur in the night or when he first wakes up from sleep. In other cases it is much more marked; occasionally it is violent and noisy; the patient may talk wildly and incoherently, he may break out into a paroxysm of screaming, or, possessed with a sudden terror, he may leave his bed and attempt to rush from the room or to jump from the window. Later in the course of the disease the active delirium subsides, and low muttering delirium takes its place. The latter may go on until convalescence occurs, or the patient may gradually fall into a comatose condition, which very often ends in death.

The delusions from which the patient suffers are various. I have known in two instances a perfectly pure young girl call loudly for her baby, which she accused her mother and sister of keeping from her. Very frequently patients insist that they are in a strange place, and beg piteously to be taken to their home and friends; occasionally, in grave cases, the patient declares that there is nothing the matter with him. This Louis was accustomed to regard as a bad symptom, having never known recovery to take place after it. Delirium generally first makes its appearance some time in the course of the second week, but occasionally the invasion of the disease is marked by maniacal excitement. I have known delirium to occur on the second or third day. Louis records two cases in which it was present during the first night, and Bristowe51 one in which it was noted on the fourth night. It is sometimes so prominent a symptom in the beginning of an attack that the patient has at first been supposed to be affected with acute mania. M. Motet52 indeed refers to a case in which a man was actually admitted into an insane asylum before the true nature of his disease became known. On the other hand, delirium may not occur until much later in the disease—sometimes not before the close of the third or even the fourth week, when it may suddenly make its appearance when least expected. I have known it to be present in a marked degree during a relapse when it had been wholly wanting in the primary attack.

51 Trans. Path. Soc. Lond., vol. xiii.

52 Archiv. gén. de Méd., 1868, quoted by Murchison.

During convalescence, especially in cases in which there has been much mental disturbance during the febrile period, the intellect may be weak, and continues so in some cases even after recovery in other respects is complete; but it is rarely permanently impaired. Insanity may also occur during the convalescence or after recovery, but it is usually under these circumstances amenable to treatment. In some cases the moral sense appears to be weakened after an attack, as in the case reported by Nathan Smith, in which a young man of previously good habits developed thieving propensities after his recovery.

Hyperæsthesia of the skin exists, according to Murchison, in about 5 per cent. of the cases, and may occur at any stage of the disease. It is chiefly observed in the abdomen and lower extremities, and is more frequently met with in women and children than in adult males. In a case which was partially under my care during the past summer the slightest touch made the patient, a boy of fifteen years, cry out with pain, and the administration of an enema gave him excruciating agony. Occasionally, the tenderness over the abdomen is so great that it is sometimes difficult to distinguish it from that due to peritonitis, except by the coexistence of hyperæsthesia in other parts of the body. It is very often associated with spinal tenderness, and sometimes with other spinal symptoms. Murchison does not regard it as a formidable symptom.

Cutaneous anæsthesia may also occur, but it is certainly less common in the earlier stages than hyperæsthesia. Rilliet and Barthez look upon it as of grave diagnostic import when it occurs in children.

Muscular tremor is also a common symptom of typhoid fever. A little tremulousness of the tongue when protruded may often be detected before the close of the first week. A little later the hands will be observed to tremble when held up, and still later twitching of the tendons at the wrist may be appreciable while the pulse is being felt. When muttering delirium supervenes this subsultus tendinum becomes constant, and extends to other parts of the body. The hands of the patient are frequently then in constant motion, either picking at the bed-clothes—a very unfavorable symptom—or moving in an objectless manner through the air. This condition presents many points of resemblance to that often seen in delirium tremens, and is said to come on earlier and to be more marked in those who are addicted to the abuse of alcoholic liquors. Hiccough is occasionally observed toward the close of grave cases, and is justly regarded as a bad symptom.

Spasmodic contraction of various groups of muscles is occasionally observed in severe cases, but is less frequent than muscular tremor, and in my experience is generally met with in the earliest period of the disease. The muscles of the extremities, especially those of the legs, are oftenest affected, but I have known the head as rigidly retracted as in tubercular meningitis, and have seen cases in which strabismus has been an early symptom. Murchison has had patients under his care who have suffered from constriction of the pharynx to such an extent that they could not swallow. He also reports cases in which trismus and spasm of the glottis have been present. General convulsions are not common, but occasionally do occur. Although a very grave symptom, they are not invariably fatal. Recovery took place in one of two cases which came under my own observation, and in four of the six recorded by Murchison. They are not always associated with an albuminous condition of the urine. In neither of my cases was there albuminuria, and in only one of the four of Murchison's cases in which the urine was examined was it present. In one of my cases—the fatal one—the convulsions seemed to have been induced by giving the patient improper food; in the other no cause could be discovered.

Ringing or buzzing noises in the ears are present in the early stage of the disease in a large proportion of the cases, and may sometimes persist until the disease is well advanced. Usually, however, after a few days they subside and give place to deafness. This is a very common symptom, and may either affect both ears or be limited to one. In the former case it is probably generally due to the blunted perceptions of the patient, although in a few instances it may be caused, as suggested by Trousseau, by inflammation of the Eustachian tube. When only one ear is affected the deafness is of more serious import, as it is then dependent upon the presence of local inflammation, which may possibly extend to the meninges. It is, as a rule, most marked in the severest cases. Unless there has been a local inflammation it is not followed by permanent impairment of the hearing. It has even been regarded by some observers as a favorable symptom, but this opinion does not appear to rest upon a more substantial basis than the observation of Louis, that the most profound deafness adds nothing to the gravity of the prognosis.

Imperfect or perverted vision occasionally occurs in the course of typhoid fever. In a case which was recently under my care, and which has already been referred to in another connection, there was double vision associated with strabismus. Sometimes haziness of vision, and sometimes even visual illusions, are observed. Bartlett and Murchison have often known intolerance of light present in cases characterized by active febrile excitement. As a general rule, the pupils are widely dilated and the conjunctiva pearly white—a condition which is in marked contrast with what is seen in typhus fever. When, however, stupor supervenes in bad cases, the pupils are frequently as much contracted and the conjunctivæ as much injected as in the latter disease. In a few cases unequal dilatation of the pupils has been noticed. Trousseau was accustomed in his clinical lectures to call attention to the frequency with which sloughing of the cornea occurred in the condition known as coma vigil, in which the patient lies with his eyes wide open. He attributed this accident to the fact that the eye in this condition is not kept constantly moist by the occasional closure of the eyelids, and hence, as its innervation is also impaired, is especially prone to take on ulcerative inflammation. In other cases there is a free secretion of viscid matter, which often glues the eyelids together.

The sense of taste is often lost or perverted. This is partly due to impaired innervation of the tongue and palate, and partly to the thick deposits which usually cover the mucous membrane of these organs.

FIG. 12.
Chart of typical range of temperature in typhoid fever, after Wunderlich.

Frequent observations of the temperature in typhoid fever not merely give most important information in a diagnostic and prognostic point of view, but also often furnish valuable indications for treatment. From a close study of a large number of cases, Wunderlich and other physicians have discovered that the pyrexia has certain characters which distinguish it from other fevers, and which, being present in a case in which the other symptoms are obscure or ill defined, will often enable us to recognize its true nature. The pyrexia may be divided into three periods, each having its own peculiarities. It is usually said that each period lasts about a week, but in severe cases the second and third periods extend over a longer time than this, and the occurrence of a complication or of any other disturbing influence will have its effect in producing either a prolongation of any one or more of these periods, and especially of the last two, or an unwonted elevation or fall of temperature. During the first period there is a progressive rise of temperature, but the rise is never so abrupt as in typhus or in many of the phlegmasiæ. As there are morning remissions, ranging from a degree to two degrees in extent, corresponding to the morning fall in the daily variations of temperature, the tracing upon the temperature chart will be a zigzag line, each evening temperature being from a degree and a half to two degrees higher than that of the preceding evening, while the same difference will be observed in the morning temperature. The temperature ought, therefore, never in an uncomplicated case to be much over 100° on the first evening or 102° on the second. A temperature of 104° at any time during the first or second day will consequently exclude typhoid fever from the diagnosis. From six to eight days are usually occupied before the maximum is reached. I have seen it attained as early as the fourth day in mild cases, and, on the other hand, not until much later in severe ones. It is usually 104° or 105°, but will of course vary with the gravity of the other symptoms. The temperature rarely rises higher than 106° at this period. On the other hand, I have known cases in which it never exceeded 103° during their whole course. It would therefore be wrong to exclude typhoid fever from the diagnosis, as Wunderlich does, if this temperature is not reached by the sixth, or at latest the eighth, day.

In the next period the temperature usually ceases to rise, but has a tendency to oscillate about the maximum temperature of the previous period as a fixed point, occasionally not quite reaching it, at other times rising a little above it. The morning remissions, too, become less decided. In other words, the fever now becomes continuous. This period, although usually lasting about a week, may extend over more than two weeks, even in the absence of complications, in cases which run a severe course, and when it is prolonged from this cause the temperature may again show a tendency to rise, and may even attain an elevation considerably above that of the preceding period. The prognosis in all such cases in which the temperature rises after the middle of the second week is grave. Temperatures of 108°, and even of 110.3°, have been noted at this time. Death invariably follows such high temperatures as these, but before death actually occurs a considerable fall of temperature very often takes place. Wunderlich has also called attention to the fact that it is not uncommon for a sudden and temporary remission of temperature to take place at this stage, varying from one degree to two degrees and a half, which may last from ten to twelve hours, and which usually has occurred in his experience from the sixteenth to the eighteenth day. Toward the close of the second period the morning remissions will be observed to be more decided, while the evening temperature remains about the same as before. The beginning of the third period is indicated by a diminution of the evening exacerbation, while the morning remissions become still more marked. The diminution is progressive, but slow, the temperature each evening falling short by from half a degree to a degree of the point it reached the preceding evening. The morning remissions, on the other hand, each day become greater, a fall of three and a half degrees being not uncommon. The lysis, therefore, occupies usually a longer time than was required by the pyrexia in reaching its maximum. Toward the close of this period the morning temperatures may be normal, as even subnormal, while an elevation of temperature may continue to take place in the evening. Occasionally, however, an abrupt defervescence takes place. The duration of this period will be very much prolonged if complications are present or if the intestinal ulcers are slow in healing. I have known it to last for more than three weeks. During convalescence the temperature is frequently subnormal even in the evening, but the slightest cause is often sufficient to produce a considerable though temporary elevation of temperature. I have known the temperature in one case to rise from 99° F. to 105.6° in a few hours in consequence of an indiscretion in diet, and in another from 100° to 104° from the suffering and excitement caused by a severe attack of toothache. Indiscretions in diet are a fruitful source of these recrudescences of fever. The fever of the third period has all the characters of an irritative fever, and is probably kept up by the irritation arising from the intestinal ulcers. On the other hand, that of the first two periods is due to the action of the specific poison upon the nervous system and the other tissues of the body, and corresponds exactly with the primary fever of the eruptive diseases.

FIG. 13.
Chart showing recrudescence of fever from indiscretion of diet.

The febrile movement, however, rarely follows a perfectly typical course, and I consequently find, in looking over the temperature sheets of a large number of cases, very few which bear, except during the first period, anything more than a general resemblance to the chart which Wunderlich has prepared as typical. A very slight cause will exercise, as has already been said, a disturbing influence upon the course of the fever, and serious complications or accidents will of course produce a still more marked effect. An intestinal hemorrhage, for example, will cause a rapid and decided fall of temperature. I have often known it to fall from 104° to the normal temperature, or even below it. This depression, unless the bleeding continues and the case ends fatally in the course of a few hours, is only temporary, the temperature rising within twenty-four hours to its former height, and sometimes even beyond it. A free epistaxis or a copious diarrhoea will in the same way cause a fall of the temperature, but it is rarely so marked as in the preceding case. The same effect is produced by the administration of large doses of quinia or by the application of cold water either in the form of the bath, the douche, or any other form, to the surface of the body. On the other hand, the occurrence of a complication will cause a rise of temperature, often considerably above the maximum of the first period.

FIG. 14.
Chart showing fall of temperature from intestinal hemorrhage in typhoid fever.

The thermometer should be used at least twice daily. In this country it is generally introduced into the axilla, and less frequently into the mouth, for the purpose of making an observation. In other countries it is not infrequently inserted into the rectum, and even into the vagina. The best hours for making the thermometric observations are eight in the morning and eight in the evening, since it has been ascertained from frequent observations that the daily remissions are more marked between the hours of 6 and 8 A.M., and that the temperature usually reaches its maximum some time between those of 7 and 12 P.M.

Loss of appetite is, except in mild cases, one of the earliest symptoms of the disease, and usually persists as long as the fever lasts. It is sometimes accompanied by positive loathing for food, but generally there is no great difficulty in persuading the patient to take the necessary amount of nourishment. During convalescence the appetite returns, and is occasionally immoderate, so that it is frequently necessary to curb it lest harm should be done by over indulgence.

Thirst, usually proportionate to the degree of fever, is also present in the beginning of the fever. Later, when the patient sinks into a semi-unconscious condition and becomes insensible to the wants of the system, he will cease to call for water, although it is still urgently needed.

Nausea and vomiting sometimes occur at the beginning of the disease, but they have not been such frequent symptoms in my experience as they would appear to have been in that of Murchison, who says that they are of such common occurrence that the patient is often supposed at first to be suffering merely from a bilious attack. He does not regard them, when occurring at this stage, as serious symptoms. Indeed, he expresses the belief that the subsequent course of the disease is sometimes favorably modified by them. They may also occur later in the disease, and are then of grave import, as they are not infrequently the consequence of peritonitis. Louis regarded vomiting as a grave symptom, but it is probable it occurred in the cases from which he makes his deductions late in the course of the disease. It may sometimes occur during convalescence, and may then interfere very materially with the proper nutrition of the patient. The matter vomited usually consists of a greenish bilious fluid, with the food last taken. In some cases blood has been thrown up.

The tongue at the beginning of an attack of typhoid fever is usually moist and coated with a thin white fur, and in mild cases may retain these characters until the close. Even in some cases which terminate fatally in the course of the second week, the tongue, with the exception of being less moist than in health, may present no marked deviation from this appearance. Generally, however, as the disease progresses, and sometimes as early as the tenth day, it becomes dry and brownish, and is protruded with a tremulous motion. Still later it tends to cover itself with a thick brown coating. This coating is disposed principally along the middle of the organ, leaving uncovered the edges and tip, which are very apt to be unnaturally red in color. The bare portion at the tip is often rudely triangular in shape—a point which is regarded as of some importance in the diagnosis of the disease by Da Costa. In bad cases, during the course of the third week the tongue is frequently crossed by cracks and fissures, which are the cause of much discomfort to the patient, and when deep may bleed and leave behind them scars which are recognizable during the remainder of his life. In other cases the tongue is dry, brown, and shrivelled, or covered with a tenacious, viscid secretion which renders it difficult to protrude it.

In favorable cases, as convalescence approaches the tongue regains by degrees its normal appearance. At first the only noticeable change may be that the organ is a little less dry than before. In a few days it will be observed to have become moist and to be gradually throwing off its coating. The process is, however, a slow one, and one, moreover, subject to frequent interruption. Very often, when it seems nearly completed it will be suddenly arrested, and the tongue become dry and brown. Sometimes, instead of cleaning itself gradually, the tongue throws off its coating in large flakes, leaving the mucous membrane red and shining, as if deprived of its papillary structure. Wood was accustomed to teach that if the tongue when thus cleaned remained moist convalescence might be expected, but would always be tedious. This is an observation the correctness of which I have had abundant opportunity to confirm. If anything happens, however, to interfere with the progress of convalescence, it not infrequently becomes dry and coats itself over again. When the restoration to health is retarded by the continuance of diarrhoea or by the occurrence of any intercurrent affection, the tongue will often become pale and flabby and be the seat of superficial ulcerations or of aphthous exudations.

The mucous membrane of the posterior fauces is also often red and dry and covered with a glutinous secretion, which often materially interferes with swallowing. The lips and teeth are in bad cases encrusted with sordes, and the former are dry and cracked, and bleed readily when picked.

Meteorism or tympanites is observed in the greater number of cases of typhoid fever, having been noted by Murchison in 79 out of 100 cases, and by Hale in 130 out of 179 cases, and in only 43 of the remainder of his cases is it expressly stated to have been absent. My own experience leads me to believe that it is present in even a larger proportion of cases; in fact, that it is rarely absent. It is, as a rule, later in making its appearance than the other abdominal symptoms, showing itself usually about the end of the first or the beginning of the second week. It is generally most marked in grave cases, especially those attended by severe diarrhoea, but I have seen it highly developed in cases in which the symptom was not present at all or but little developed. It may vary, moreover, frequently in degree at different times in the same case, but when once present generally persists until convalescence is established or death occurs. When extreme, it may give rise to distressing dyspnoea by preventing the descent of the diaphragm.

The meteorism is usually preceded and accompanied by gurgling and tenderness on pressure in the right iliac fossa. The former of these symptoms is most marked in cases in which diarrhoea exists, and is caused by the presence of liquid and gas in the lower part of the ileum. The tenderness is unquestionably due to the presence of ulcers in the same part of the bowel. There is also occasionally pain in the region of the umbilicus, but this is a much less frequent symptom.

Enlargement of the spleen was noted by Hale as being present in some of the cases which he has described. It is a frequent symptom of the disease, and may be generally demonstrated by percussion in the course of the second week. It has not, however, often happened to me to be able to feel the organ enlarged through the abdominal walls, as Murchison asserts he has been able to do. Indeed, tympanites is usually present in a sufficient degree to render this difficult. The enlargement occurs more frequently in persons under thirty years of age than in those over it.

Diarrhoea is one of the most frequent symptoms of the disease, especially in severe cases, and there are very few mild cases in which it does not occur at some period of their course. Louis noted it in all but three of his fatal cases, Murchison in 93 out of 100, and M. Barth in 96 out of 101. It varies in different cases in severity, in duration, and in the time at which it appears. It may be one of the earliest symptoms, presenting itself frequently on the first day, and often being the only one which occasions uneasiness to the patient or his physician. At other times its appearance may be postponed until the end of the first week, or even until the patient is apparently entering on convalescence. It may be mild in the beginning and become more severe as the disease progresses, or after having been at first acute may cease spontaneously in a few days to occasion any uneasiness. In degree it may vary from two stools to three or four, or even twenty, in the course of the twenty-four hours. It is absent in a few cases, but in many even of these cases the bowels will be found to act inordinately after a very moderate dose of purgative medicine. I have known, for instance, the administration of a single teaspoonful of castor oil to be followed by five or six stools in an adult. Constipation does, however, actually exist in a certain number of cases. Murchison has known the bowels in cases in which a relapse has occurred to be constipated in the primary attack and relaxed in the relapse. There is no relation between the severity of the diarrhoea and the extent of the local lesion. Although oftenest met with in mild cases, constipation has existed in cases in which perforation of the bowel or intestinal hemorrhage has occurred during life, or very extensive lesions been found after death.

The stools are fetid and ammoniacal, and are alkaline in reaction, instead of acid as in health. They are usually liquid and of the color of yellow ochre. Murchison says that they separate, on standing, into two layers—a supernatant fluid and a flaky sediment—but that, occasionally, instead of being watery they are pultaceous, frothy, and fermenting, and so light as to float in water. I have myself often seen the appearance which Bartlett compares to that of new cider. They may contain blood, and when they do, occasionally present the appearance of coffee-grounds. They are not infrequently, in grave cases, passed involuntarily.

Intestinal hemorrhage is fortunately not a frequent symptom of typhoid fever. It may occur as early as the fifth or sixth day, but is more common after the middle of the second week or in the third or fourth week. In 60 cases observed by Murchison in which the hemorrhage exceeded six ounces it began during the second week (mostly toward its close) in 8; during the third week in 28; during the fourth in 17; during the fifth in 1; during the sixth in 3; during the seventh in 1; and during the eighth week in 1; while in one case the date of its occurrence is not noted. In the cases observed by Liebermeister and Griesinger, 113 in all, the bleeding took place in a much larger proportion of cases at an early period of the disease, occurring in as many as 43 in the second week, and in only 27 during the third. In 7 cases in which I had the opportunity of observing it in patients under my own care it occurred on the seventeenth day in 1; on the twenty-third day in 1; during the third week in 2; during the fifth week in 2; and on the fifth day of a relapse in 1. There may be a single hemorrhage, or the bleeding may be repeated one or more times. In 5 of my cases there was a second hemorrhage, and in 2 of them a third; and in several of Murchison's cases it recurred at varying intervals after its first appearance.

When the bleeding occurs early in the disease it is usually insignificant in amount, and is due either to extreme congestion of the mucous membrane of the intestine, giving rise to rupture of the capillaries, or to disintegration of the blood, allowing its ready passage through the walls of the vessels. In the latter case it usually coexists with petechiæ or a hemorrhage from some other part of the body, as, for instance, epistaxis or hematuria. After the middle of the second week the hemorrhage is generally the result of the laying open of a small artery, either by the detachment of a slough from one of the glands of Peyer or by the involvement of its walls in the ulcerative process. It is then often profuse, and may even reach several pints in quantity. Murchison has, however, seen profuse hemorrhage at such an early stage of the disease that it was impossible that ulceration could have taken place. The blood is not always voided immediately after a hemorrhage has taken place; it may be retained for some days. Indeed, if the amount be large the patient may die within a few hours of its occurrence without any appearance of blood externally. This is, however, rare; it is more usual for the hemorrhage to be repeated before death takes place, but the occurrence of the bleeding may be suspected in such cases by the abrupt fall of temperature, sometimes below the normal standard, and by the extreme prostration and pallor which come on suddenly without other assignable cause. The depression of the temperature does not continue long. It generally reaches its former elevation, or even exceeds it, in the course of twenty-four hours.

There would appear to be a slight difference in the frequency with which intestinal hemorrhage occurs in different times and at different places. Murchison noted it in 58 cases of 1564, or 3.77 per cent.; Louis in 8 cases of 134, or 5.9 per cent.; Liebermeister in 127 cases of 1743, or 7.3 per cent.; Griesinger in 32 cases of 600, or 5.3 per cent.; and I have noted it 7 times in 81 cases, or in about 8.5 per cent. Liebermeister makes it twice as frequent in women as in men. It seems to be much less common in children than in adults, for in 252 patients under fifteen years of age observed by Taupin, Rilliet, and Barthez it occurred in 1 only. There is considerable diversity of opinion among observers in regard to the importance of this symptom. Murchison lost 32 of his 60 cases. In 11 of the 32 fatal cases the immediate cause of death was peritonitis; in 14 of the remaining 21 cases the patients died within three days of the bleeding, and in 8 of the 14 within a few hours. Of Liebermeister's 127 cases 49, and of Griesinger's 32 cases 10, terminated fatally; 3 of my own cases ended in death, but none of them until several days had elapsed after the bleeding. In the face of facts such as these there have not been wanting authors to assert that the effect of the hemorrhage was sometimes beneficial. Chief among these are the celebrated Irish physician Graves and his devoted admirer Trousseau. There may occasionally be a slight subsidence of the nervous symptoms upon the occurrence of a hemorrhage, consequent upon the reduction of temperature which usually accompanies it, but this relief is only temporary, and procured at too great expense to be really of service to the patient.

The bleeding is most frequently observed in bad cases. All the cases which were under my care in which it occurred were of great severity from the very start. In 18 of Murchison's 60 cases the antecedent symptoms were mild. In 3 of my cases there was severe diarrhoea. In 2 of the other cases, 1 of which was fatal, the bowels were constipated, and in another one, also fatal, they were slightly loose. In 8 of Murchison's cases, 6 of which were fatal, the bowels had been constipated up to the time of its occurrence. The blood, if voided immediately after its escape into the intestines, is generally fluid and bright red in color. When retained for a day or two it is passed in dark clots, and if retained longer than this it is usually mixed with fecal matter when discharged from the bowels, and gives the stools a tarry appearance and consistence, which is not always recognized by inexperienced attendants as due to blood.

It has been asserted that intestinal hemorrhage has become more frequent since the introduction of the cold-water treatment, but Liebermeister shows this to be an error, for he has found that of 861 cases treated before the introduction of this treatment, 72, or 8.4 per cent., had intestinal hemorrhage, but that of 882 cases treated since its introduction hemorrhage occurred in 55, or in 6.2 per cent. Other methods of treatment have also been charged with inducing a tendency to hemorrhage, but probably not upon more substantial grounds than the above.

The occurrence of perforation may be suspected when the patient is suddenly seized with acute pain in the abdomen, accompanied by symptoms of collapse and occasionally by rigors. The fall of temperature is often considerable. Liebermeister refers to one case in which it was as much as 5½°, or from 104° to 98½°. Very soon the abdomen becomes tender on pressure, and, if it were not so before, hard and tympanitic; the pulse grows frequent, small, and sometimes almost imperceptible; the breathing is thoracic; the physiognomy expresses great suffering; the features are contracted, and the face is bathed in profuse perspiration. Nausea and vomiting come on soon after inflammation has commenced, and rapidly exhaust the patient. The decubitus is dorsal, and the legs are generally drawn up so as to relax the abdominal muscles. Prostration rapidly increases until death puts an end to the patient's sufferings. Occasionally, the symptoms are more obscure. Pain and rigors may both be wanting, and nothing but the extreme prostration, the frequent and feeble pulse, and the distended condition of the abdomen will indicate the gravity of the danger. This is not infrequently the case in delirious patients. Death may take place during the collapse, but this is rare. It more frequently takes place on the second or third day; on the other hand, it may be postponed until much later. Liebermeister and Murchison refer to cases in which there was an interval of two or three weeks between the first symptom of perforation and the fatal result.

Perforation of the intestine was formerly regarded as an inevitably fatal accident, but this view is no longer entertained. I have had under my observation cases in which all the symptoms of this accident were present, and in which recovery took place. In some of these cases there may have been an error of diagnosis, but all of them will not admit of this explanation. Moreover, cases of a similar character have been reported by physicians whose skill in diagnosis is universally recognized. Thus, Murchison reports six such cases, Tweedie two, and Wood one. Liebermeister and Bristowe53 also both say that recovery is possible. This view is sustained by the results of certain autopsies. In one of these, reported by Buhl,54 a perforation was found completely closed by adhesions to the mesentery, and in others reported by Murchison partial adhesion had taken place between the edges of the perforation and the abdominal walls or to an adjoining coil of intestine. Occasionally, the inflammation excited by the perforation may be circumscribed and terminate in an abscess, which may permit recovery by discharging itself into the bowel or externally. At other times, however, it ruptures into the peritoneal cavity, when death speedily ensues.

53 Transactions of the Pathological Society of London, vol. xi. p. 115.

54 Cited by Murchison.

Perforation is, fortunately, not a frequent accident in typhoid fever. It was the cause of death in 20 only of 250 fatal cases collected by Hoffmann. It occurred, according to Liebermeister, in only 26 cases, 3 of which ended in recovery, in more than 2000 cases observed at the hospital at Basle. Murchison observed it 48 times in 1580 cases, Griesinger 14 times in 118 cases, and Flint twice in 73 cases. Murchison found that in a total of 1721 autopsies, the details of which were collected from various sources, it was the cause of death in 196, or 11.38 per cent. It would appear to be rather more common on the continent of Europe than in England or in this country. Perforation is much more frequently met with in men than in women. The patients were men in 15 of 21 of Liebermeister's cases, in 51 of 73 of Murchison's, and in 72 of 106 cases collected by Näcke. It is rarer in children than in adults. Rilliet, Barthez, and Taupin met with it only three times in 232 children under treatment. Murchison has, however, had a fatal case in a child of five years of age. It is also not common after forty years of age, but does occasionally occur, although the contrary has been asserted.

Perforation is most likely to happen during or after the third week of the disease, but it has been met with as early as the eighth day, as in a case reported by Peacock. On the other hand, in three cases cited by Morin55 it did not occur until the seventy-second, seventy-sixth, and one hundred and tenth day, respectively. Instances are on record in which it has taken place after the patient was supposed to be thoroughly convalescent and had returned to his occupation. When it occurs early it is due to the separation of a slough. After the middle or end of the third week it is probably always the result of the extension of the ulcerative process to the peritoneal coat. In a large proportion of cases the perforation has been preceded by symptoms of great gravity, such as severe diarrhoea, great tympany and tenderness of the abdomen, and intestinal hemorrhage, but in a certain number of instances the cases in which it has occurred have been of a mild character, the patient in many of them not considering himself sick enough to take to his bed or even to abstain from his daily labor. After death the perforating ulcer has been found to be the only one.

55 Quoted by Murchison.

The most frequent causes of perforation are the irritation arising from indigestible and unsuitable food, distension of the bowels by feces or gas, vomiting, and movements on the part of the patient. Liebermeister calls attention to the frequency with which ascarides are found in the intestines of those who die of perforation, and is inclined to think they may have something to do with causing it. Morin56 reports a case in which the perforation appeared to be caused by the administration of an enema.

56 Quoted by Murchison.

For our knowledge of the changes in the composition of the urine we are largely indebted to Parkes and certain German observers. As the disease generally begins insidiously, the condition of the urine before the attack and during the first two or three days has not been ascertained with certainty. During the latter part of the first week the amount of water is greatly diminished, occasionally falling to one-fourth or one-sixth of the usual quantity. In the second and third weeks it increases, and at the end of the fourth week may again be normal. The amount may, however, vary from day to day, but its variations do not stand in close relation to those of the febrile heat; that is, the thermometer may mark one day 104°, and the next day 100°, while the amount of urine remains the same. Still, when the temperature begins to fall permanently it increases at once, or, according to Thierfelder, two or three days after. The specific gravity is usually high in almost all cases in which the urine is scanty, and may be as high 1038. With the establishment of convalescence the specific gravity often diminishes before the water begins to increase. In other words, the lessening of the solids of the urine frequently takes place prior to the increase of the water.

The reaction of the urine is very acid in the beginning, but the acidity is not due to an increased secretion of acid, but simply to concentration. Later it may become alkaline, and even ammoniacal. The color of the urine is darker than in health during the early part of the febrile period. This is due partly to concentration, and partly to increased disintegration of the blood-corpuscles, which is a consequence of the fever.

The quantity of urea is augmented during the fever, and especially during the first week, when the water and chlorides of sodium are most diminished. As a general rule, the higher the temperature the greater the amount of urea. It may, however, be very much diminished during the presence of inflammatory complications. On the other hand, it is not affected by diarrhoea. Uric acid is uniformly increased, the amount of increase being relatively greater than that of the urea; it is often doubled, and sometimes the increase is even more than this. This increase takes place, according to Zimmer, up to the fourteenth day. It diminishes after this, and during convalescence may fall below the normal amount. Copious deposits of urates may occur at any time in the course of the disease. The chloride of sodium is usually diminished in amount. This diminution is partly due to a less amount of this salt being taken with the food, and partly to the fact that large quantities of it pass away with the stools. As the diminution cannot always be fully accounted for in this way, it would appear that it is also stored up in the body during the fever. In cases in which sweating and purging are absent the sulphuric acid is increased in amount. The phosphoric acid is at first slightly diminished, but later undergoes an increase. The hippuric acid is also diminished.

Parkes found albumen in the urine in 7 out of 21 cases. In 5 of these it was temporary, and entirely disappeared before the patients left the hospital. Becquerel found it in 8 out of 38 cases, Andral in only 4 out of 34 cases. Griesinger found it commonly, though it was usually temporary. He met with only four or five cases in which it was never present. Kerchensteiner found albumen in a fourth part of the severe cases. Brattler noticed it in 9 out of 23 cases. I have very frequently found it myself, but it has always been in my cases a temporary phenomenon. Desquamative nephritis may occur occasionally in the course of typhoid fever, and give rise to the appearance of a large amount of albumen in the urine, and also occasionally of blood. Renal epithelia and casts are sometimes seen in cases in which there is albuminuria, but usually soon disappear. Zimmermann asserts that in all but very slight cases casts may be found even when no albumen can be detected. The statement is probably too general, but there is no doubt of the occasional presence of casts under these circumstances. Bladder epithelia and pus-cells are seen in a few cases in small quantities, but decided cystitis is rare, unless it has ensued upon retention of urine. Sugar has not been found except in the urine of diabetic patients, who may have happened to contract typhoid fever. In these patients the sugar diminishes, and is sometimes wholly absent during the continuance of the fever. Leucin and tyrosin have been found by Frerichs, but at present no observations have been made as to the frequency or import of their occurrence.

In many cases, when the prostration is extreme, the urine is passed involuntarily, but in some of these cases the incontinence of the urine is only apparent, and is really the result of over-distension of the bladder. This is a condition which is very apt to be overlooked, and I have known paralysis of the bladder to result in consequence of this neglect, and to continue sometimes after convalescence has been established.

COMPLICATIONS AND SEQUELÆ.—Although cerebral symptoms are among the commonest manifestations of the disturbing effects produced in the economy by the typhoid fever poison, they are almost always independent of inflammation of the brain and its membranes. In a few cases, however, the lesions of meningitis have been found after death. In some of these it has come on without assignable cause, in others it has been the consequence of pyæmia, of tubercles, or of the extension of inflammation from the petrous portion of the temporal bone. Occasionally, during convalescence, some impairment of the intellect is observed. This may consist in simply some loss of memory or childishness of manner. At other times delusions of a mild form are present, or else the patient is liable to attacks of acute mania, sometimes violent, coming on suddenly and without fever. In a few instances the moral sense seems to have been perverted, as in the case reported by Dr. Nathan Smith, already referred to, in which a young man of previously good character developed a propensity to steal after his attack. Recovery with the re-establishment of the physical health almost occurs in these cases. Murchison says he knows of no case in which this condition has been permanent. On the other hand, Dr. C. M. Campbell,57 who had the opportunity of observing an attack of typhoid fever among some insane patients at the Durham County Asylum, reports that the mental state was in no case injuriously affected by the disease, but, on the contrary, underwent a marked improvement in several of the cases. Indeed, in two of the cases, in which the prognosis had become very unfavorable, mental recovery began during the attack of fever.

57 The Journal of Mental Science, July, 1882.

Paralysis, muscular tremors, and chorea are also occasionally observed after attacks of typhoid fever. According to Murchison, paralysis does not supervene until several weeks after the commencement of convalescence. It may last for several weeks or months, but recovery in the majority of instances eventually takes place. According to Nothnägel,58 the most common form is paraplegia, but it may also take the form of hemiplegia, strabismus, paralysis of the portio dura, motor paralysis of individual spinal nerves, such as the ulnar or peroneal, or local anæsthesia. On the other hand, neuralgias and disturbances of sensation are not common sequelæ of typhoid fever.

58 Cited by Murchison. See also article by Paget, St. Bartholomew's Hospital Report, vol. xii.

Degeneration of the muscular tissue of the heart is probably present in some degree in every case of typhoid fever, being, of course, most marked in the severest cases. There would seem, however, to be no special tendency to disease of its valves or membranes. Arterial thrombosis or embolism, giving rise to gangrene of the part supplied by the obstructed artery, is of occasional occurrence. Patry,59 Hayem,60 Trousseau,61 and others report or refer to several cases in which gangrene of the leg, hand, or cheek was observed, and among others a case in which sphacelus depending upon obstruction of the carotid artery, the result, as Patry thought, of arteritis, commenced in the left ear, and extended from there to the forehead and cheek.62 A. Martin63 reports the case of a woman who expelled from the vagina a fetid-smelling structure of cylindrical form, which proved to be the cervix of the uterus, with the upper part of the vagina, and in whom menstruation was not re-established until after the performance of an operation. Spillmann64 has also called attention to the occurrence of gangrene of the vagina and vulva in cases of typhoid fever. This complication is generally met with toward the end of the febrile period.

59 Archives générales de Médicine, 1863, vol. i. pp. 129-549.

60 Loc. cit.

61 Clinique médicale.

62 Since the above was written Barié has called attention in the Revue de Médicine, Jan. and Feb., 1884, to the frequency with which acute inflammation of the arteries occurs as a sequel of typhoid fever. The author, whose investigations were limited to the larger arteries, found that the vessels generally implicated are in the order of their frequency, the posterior tibial, the femoral, and the dorsal artery of the foot. The affection is usually unilateral, appears during convalescence or when the patient leaves his bed, and occurs just as often after light as after severe cases. He distinguishes two varieties: 1, acute obliterating arteritis, and, 2, acute parietal arteritis. The first variety is characterized by embryonal infiltration of all the tissues, by disappearance of the smoothness of the intima, which becomes uneven and granular, and by the formation of a secondary thrombus, and almost invariably terminates in dry gangrene. The second is merely an inflammation without such a clot, and always terminates in recovery without gangrene.

The symptoms of obliterating arteritis are—pain, more or less sudden in its onset, directly over the course of affected vessels, and increased by pressure, by the erect position, and by walking; diminution, and then absence, of pulsation; swelling of the limb, without oedema or redness; and, later, the appearance of bluish mottling of the surface, and, more rarely, of patches of purpura; lowering of the temperature, with or without troubles of sensibility, such as formication, anæsthesia, etc., and the appearance of a hard and painful cord, due to the formation of the thrombus. In the parietal form the diminution of the pulsations is sometimes preceded by a considerable exaggeration of their amplitude, and, while the temperature on the affected side is usually lowered, it may sometimes be increased.

63 Centralblatt f. Gynakol, 1881.

64 Archives générale, Mars, 1881.

Venous thrombosis, the result of weakness of the heart's action, is more frequently observed. It occurs generally during the convalescence of cases which have run a severe course, and usually affects the veins of the lower extremities. I have seen both the femoral veins obstructed from this cause at the same time. All the cases which have come under my own observation have ended in recovery, and only 2 of 31 collected by Liebermeister terminated fatally. Death occurred in 3 of the 17 cases collected by Murchison, but in none of them was this result attributable to this complication alone. There is, however, always danger of a portion of the thrombus becoming detached and producing embolism of the pulmonary artery.

Pyæmia is said by Murchison and other authors to be an occasional complication, but it is certainly rare in this country. In the milder cases abscesses form during convalescence beneath the skin in different parts of the body. In the more severe cases pus is deposited in the joints or in the internal organs. Albert Robin65 has reported two cases in which there was suppurative joint affection. In one of these the joints of the fingers and toes, with the sheaths of the corresponding extensor tendons and both knee-joints and one shoulder-joint, were affected. In the other the left knee was filled with pus. In both cases the fever soon assumed an adynamic character.

65 Gazette de Paris, 1881.

Laryngitis may sometimes occur in the course of typhoid fever, and when it assumes the diphtheritic form and runs on to the formation of ulcers is a very serious complication of typhoid fever, as it is not infrequently accompanied by oedema of the glottis and gives rise to the necessity for tracheotomy. It is fortunately, at least in its worst forms, rare in this country. In Germany, judging from the number of cases collected by Hoffmann and Griesinger, it is of more common occurrence. The ulcers are oftener met with in some epidemics than in others. During the winter of 1860-61, which I passed in Vienna, the frequency with which they occurred was the subject of remark among those who were in attendance upon the various clinics.

I have already called attention to the frequency with which bronchitis in some form or other attends upon typhoid fever. When it invades the smaller bronchial tubes it occasionally gives rise to lobular pneumonia or to collapse of some of the lobules of the lung. Lobar pneumonia may also occur in the course of typhoid fever. It was observed 52 times in 1420 cases of typhoid fever under treatment at the Basle hospital from 1865-68. When it comes on late in the disease, especially if the patient is comatose, or even semi-conscious, it may be entirely overlooked, unless the lungs are carefully examined, as it often does not reveal itself to us by any of the ordinary symptoms. It may, however, occur early, and I have known it so prominent in the beginning of an attack that the existence of typhoid fever was not suspected. It sometimes terminates in abscess or gangrene, but is more usually followed by chronic pneumonia, which may eventually either end in recovery or lay the foundation for phthisis. Pleurisy with effusion is also not an uncommon complication. It was observed, according to Liebermeister, at the hospital at Basle 64 times in 1743 cases of fever. It is also a serious complication, as 21 of the 64 cases terminated fatally. Murchison refers to three cases in which it was followed by empyema. Other morbid conditions of the respiratory organs which may occur as complications of typhoid fever are oedema, infarction, hypostatic congestion of the lungs, emphysema, and pneumothorax. Acute miliary tuberculosis is also an occasional complication, but is oftener met with as a sequel. According to Liebermeister, the tendency to pulmonary complications has diminished since the introduction of the cold-water treatment.

Catarrhal or diphtheritic inflammation of the fauces and pharynx occurs in a large number of cases, and frequently gives rise to a great deal of difficulty in swallowing. Indeed, it has been so frequently observed in some epidemics that a few writers have regarded it as a symptom rather than a complication of the disease. Either of the varieties of inflammation may extend through the Eustachian tube to the middle ear and be the cause of deafness, which usually passes off as the inflammation subsides. Occasionally, however, the affection of the middle ear gives rise to perforation of the tympanum or to caries of the petrous portion of the temporal bone.

Murchison says he has known the symptoms of and lesions of dysentery to coexist with those of typhoid fever in several cases, and Liebermeister asserts that diphtheria of the intestinal mucous membrane is an occasional sequel to severe cases, especially when other mucous membranes are the seat of diphtheritic inflammation. In a few instances which have come under his observation it had given rise to perforation of the bowel or to gangrene of the intestinal mucous membrane.

Jaundice occasionally occurs in the course of the disease. I have never happened to see this complication, and am inclined to think it is rare in this country. Liebermeister, however, met with it 6 times in 1420 cases, and Griesinger 10 times in 600 cases. Hoffmann found it in 10 of 250 fatal cases, and Murchison was able to collect 9 cases, all of which but one terminated in death. Several of Griesinger's cases, however, ended in recovery. In a few cases the jaundice may be attributed to catarrh of the biliary ducts, but this solution of the question will not explain those cases in which the feces remain colored throughout. In fatal cases marked degeneration of the liver has been found, which Liebermeister regards as of similar character to that which occurs in acute yellow atrophy. In two of Murchison's cases the liver was small and its secreting cells loaded with oil. In most cases it does not appear until late in the disease, but it has been observed as early as the fifth day.

Abscess of the liver and diphtheritic inflammation of the mucous membrane of the gall-bladder are among the rarer sequelæ of typhoid fever.

Peritonitis is the most serious of all the complications of typhoid fever. Its most common cause is perforation of the bowel, but it may also be due to the extension of inflammation to the peritoneal membrane without ulceration. Liebermeister believes that it is sometimes the result of the typhoid infiltration so frequent in various tissues of the body taking place in the serous membrane. In other cases it arises from the rupture of softened mesenteric glands, of softened infarctions in the spleen, or of the abscesses which are sometimes the consequence of the circumscribed inflammation by which perforation is occasionally prevented from proving immediately fatal. Less frequent causes of it are rupture of the gall-bladder, with the escape of gall-stones into the cavity of the abdomen, abscesses of the ovary, and abscesses in the walls of the urinary bladder. It is said by Murchison to have been in one case the result of a pseudo-abscess in the sheath of the rectus muscle bursting inward.

Swelling of the parotid gland occasionally occurs in typhoid fever, but is much less common than in typhus. It is most frequently met with in bad cases about the end of the third week or later, and generally involves one side only. The swelling is hard and firm in the beginning, and may terminate in resolution or suppuration. I have seen it three times only, twice in my own practice, and once in that of a medical friend. One of my cases was fatal, the other ended in recovery, as did, I believe, the third case. Murchison saw it in only 6 cases, 5 of which were fatal. According to Hoffmann,66 16 cases of suppurative parotitis were found at Basle among about 1600 typhoid fever patients, 7 of the 16 ending fatally. Parotitis without suppuration occurred three times. In 15 cases the attack was confined to one side, 9 times to the right and 6 to the left; in 4 it was double. Trousseau67 looks upon these swellings as a very grave accident, and says that he has scarcely ever seen a case recover in which it has occurred, either in the course of typhoid fever or any other disease. Chomel, on the other hand, is said to have regarded them as critical and auspicious.

66 Quoted by Liebermeister.

67 Clinique médicale de l'Hôtel Dieu, t. i. 1861.

Menstruation occasionally occurs during typhoid fever, and may be profuse. Bartels,68 who has investigated the histories of 172 patients in reference to this point, says that the catamenia always appear if the menstrual period falls within the first five days of the fever, and that they do so in two-thirds of the cases if they are expected between the sixth and fourteenth days. On the other hand, menstruation does not occur if the time for it falls in the third week. He says also that the catamenia generally appears about the time they are expected, or later, and very seldom earlier. Liebermeister, on the contrary, says that they often occur prematurely. Other uterine hemorrhages seldom occur, and never in those who have ceased to menstruate or in whom the function has not been established.

68 Petersb. Med. Wochenschr., 1881.

Suppuration of Bartholini's glands is said by Speilman to have taken place in one case.69 In the fourth week the patient complained of violent pains in the right nympha, which, upon examination, was found to be swollen. A tumor as large as a nut, which was red and painful on pressure, could also be felt in the vagina.

69 Arch. générales, Mars, 1882.

Pregnancy was formerly thought to confer an entire immunity from typhoid fever, but recent and accurate investigations have shown that if this immunity really exists, it is only relative, not absolute. Gusserow70 says that the disease is more frequently met with in the first half than in the latter half of pregnancy. Abortion under these circumstances commonly occurs. Gusserow says that it takes place in from 60 to 80 per cent. of the cases. He believes it to be due to the high temperature, which causes the death of the foetus, which is then expelled from the uterus. In a few cases, however, the child is born living. Of Murchison's 14 cases, 10 recovered, and two of the ten patients carried the child, at the fourth and eighth months respectively, throughout the attack. All the others miscarried or aborted, only one of them being delivered of a living child. Out of 18 pregnant women71 treated in the hospital of Basle for typhoid fever, between the years 1865 and 1868, 15 miscarried or aborted. In the three years following the introduction of the anti-pyretic treatment only five cases of abortion occurred, and but one of these proved fatal. This accident generally happens during the second or third week of the fever. It is always a serious complication, and if it occurs in the first three months of pregnancy it generally gives rise to profuse hemorrhage, which is usually followed by a fall of temperature as marked as that observed in hemorrhage from the intestines. Just as in the latter case, the fall is only temporary, being soon succeeded by a rapid rise of the temperature to its former height, or even beyond it.

70 Schmidt's Jahrbuch, Bd. 193, No. 1, 1880, from Berl. klin. Wochenschr., 1880.

71 Liebermeister, loc. cit.

The danger of bed-sores occurring in typhoid fever is in consequence of the impaired nutrition of the tissues, the length of time the disease lasts, and the great emaciation which usually attends it—greater than in any other acute disease. They constitute a very serious and troublesome complication, and may occur on any part of the body subjected to pressure, but are most frequent over the sacrum and trochanters. Oedema of the lower extremities from feebleness of the circulation is occasionally observed in the convalescence from protracted attacks. Lendel has published a series of 7 cases observed at Rouen, in which the entire body became very oedematous in the second or third week of the attack or during convalescence. In none of the cases was the urine albuminous. All the patients recovered except one, who died of peritonitis. Similar cases have been reported by other observers. Barthez and Rilliet have seen several cases in children.

Periostitis is an occasional sequel. I have seen it in one case only. Sir James Paget,72 who appears to have met with it in several cases, says that it never occurs in the continuity of the fever, but always when the patient is apparently convalescent, when his temperature is normal and constant, and he is beginning to move about and to grow stronger and stouter. Its most usual seat is the tibia, but it is also met with in the femur, ulna, and parietal bone. Except in one case, Sir James has never seen it in more than one bone in the same person. It is always circumscribed within a space of from one to three inches in extent, and usually subsides without necrosis or other abiding change of structure; but in some cases the patient has remained for some time subject to repeated attacks of pain and swelling of periosteum. In the few cases, he says, in which the periostitis is followed by necrosis the extent of dead bone has always been less than that of the inflammation over it. Murchison, however, refers to two cases of necrosis of the tibia, to one of the temporal bone, and to two in which extensive necrosis of the lower jaw occurred. Gay73 also reports a case of extensive necrosis of the thigh-bone in a child three years old, following an attack of typhoid fever.

72 St. Bartholomew's Hospital Report, vol. xxi.

73 Path. Trans. Lond., vol. xx., p. 290.

Very frequently after an attack of typhoid fever the patient evinces a tendency to grow stout, which is either continuous or else is gradually lost after he fully recovers his health. This increase in flesh is not always accompanied by a corresponding gain in physical strength, and he may remain for a long time after convalescence is apparently complete incapacitated for much bodily or mental exertion. Sometimes, on the other hand, the patient, instead of gaining flesh and strength, may continue weak and emaciated, even when he is taking a full amount of nourishment, which he is, however, unable to assimilate. Cases of this kind may terminate in phthisis, but they occasionally prove fatal, without any discoverable lesion after death except an abnormally smooth appearance of the mucous membrane of the ileum and a shrivelled condition of the mesenteric glands.74

74 Murchison.

Patients suffering from typhoid fever may occasionally contract other specific diseases. Murchison has notes of eight cases in which the eruption of this disease coexisted with that of scarlatina, and says that it was not uncommon in the London Fever Hospital for a patient suffering from the former disease to contract the latter. Similar cases are recorded by other observers. Typhoid fever may also be complicated with rubeola, pertussis, diphtheria, variola, and vaccinia. I have repeatedly seen children convalescent from typhoid fever in the hospitals of Paris contract one or other of the eruptive fevers.

VARIETIES.—A great variety of forms of typhoid fever has been described by various authors, but as many of them present few points of difference from the usual form of the disease, it will not be necessary to discuss them at any length. They derive their names from some peculiarity of the mode of seizure, from the prominence of some one symptom or set of symptoms, or from the presence of complications. They are—(1) The adynamic form, in which prostration is marked in the beginning and throughout the attack. (2) The ataxic or nervous form, which is characterized by the predominance of delirium, subsultus tendinum, and other nervous symptoms. (3) The hemorrhagic form, in which there is a special tendency to hemorrhage from the different mucous membranes. (4) The abdominal form, in which the abdominal symptoms, such as diarrhoea and tympanites, are well developed. (5) The thoracic form, so called from the presence of some thoracic complication. (6) The gastric or bilious form, in which the disease is complicated at its commencement by gastro-intestinal catarrh. La forme muqueuse of French authors is probably identical with the above. (7) The acute form, in which the disease begins abruptly and with great violence, and runs a very rapid course, terminating usually in death before the end of the first week or early in the second, before ulceration can have taken place. Delirium is an early and prominent symptom in this form, so that it has sometimes been mistaken for meningitis.

Certain forms of the disease deserve a little fuller consideration. One of the most important of these is the abortive form, in which, as its names implies, the fever is cut short in its course, and in which there is every reason to believe that infiltration of Peyer's glands takes place as usual, but that the subsequent course of the disease is different, the glands undergoing resolution instead of advancing to ulceration. The majority of observers agree that in the beginning there is nothing to distinguish such attacks from those which follow their usual course. Liebermeister and Jaccoud state, however, that their commencement is usually more abrupt than in the ordinary variety, the former asserting that the temperature generally reaches its maximum earlier, and the same opinion is expressed by other authors. They are occasionally characterized by severe symptoms, including a high temperature. In the few cases which have come under my own observation the symptoms have been mild, but they were sufficiently developed to leave no doubt on the mind as to the nature of the disease. In a case which aborted on the twelfth day there were hebetude, diarrhoea, tympany, and rose-colored spots persisting even after the subsidence of the fever. Constipation would appear, however, to be more frequent than diarrhoea in this class of cases. The subsidence of the fever may occur at any time between the seventh and fourteenth days; Griesinger has seen it occur as early as the fifth day. Sometimes the defervescence occurs abruptly, with copious perspiration; at others it is gradual and similar to that which takes place in ordinary attacks. Between the abortive form of typhoid fever and simple continued fever there are, of course, many points of resemblance, but cases of the former may generally be recognized by the presence of this rose-colored eruption and enlargement of the spleen, or, where these are absent, by their occurring in the same house or under the same circumstances as typical cases of the disease.

Liebermeister has called attention in his article on typhoid fever in Ziemssen's Cyclopædia to a class of cases which, he thinks, is also caused by the typhoid infection, and of which the prominent feature is the insignificance of the fever or the entire absence of it which characterizes them. Such cases appear to be of frequent occurrence in Basle. Many of them, he says, never show during their entire course any rise of the temperature, or occasionally a slight elevation only, but an enlargement of the spleen could generally be detected, and occasionally an unmistakable rose-colored eruption. The action of the bowels was usually irregular; sometimes there was diarrhoea, and sometimes, on the other hand, obstinate constipation. The other symptoms were prostration, pains throughout the body, often headache, persistent loss of appetite, with more or less swollen and furred tongue, and markedly diminished frequency of the pulse, which disappears with convalescence, while its quality is not appreciably altered. The long duration of an apparently trifling indisposition he considers as especially characteristic. Cayley also refers to cases, and even epidemics, of typhoid fever in which the temperature has been below the normal throughout the whole course of the attack. Strube75 had the opportunity of observing such an outbreak during the siege of Paris by the Germans in 1870. "In many of the cases," he says, "the temperature throughout was subnormal, and in others never exceeded the normal point. The roseola was usually profuse; the nerve symptoms were of marked severity, and were in inverse ratio to the temperature, consisting of violent delirium alternating with stupor; the duration of the fever was very short, defervescence usually taking place at the end of a fortnight. Of the 23 fatal cases, in 20 death took place during the first fourteen days. The abdominal symptoms were slight, but the characteristic lesions were found on post-mortem examination. All the cases were characterized by great prostration. These cases presented some features which were probably due to this peculiarity of the temperature; thus, the pulse was but little accelerated, seldom exceeding a hundred; the tongue did not become dry and brown; and the enlargement of the spleen was either absent or much less marked than usual. Strube attributed the peculiar features of this epidemic to the depressed condition of the troops; they had been exposed to great hardships on the way to Paris, over-fatigued by forced marches, and very insufficiently supplied with food."

75 Quoted by Dr. Cayley.

A mild form of the disease has been described by certain authors, in which the symptoms, although not severe, are characteristic, and in which there is therefore, with due care, little danger of making a mistake in diagnosis. It therefore seems an unnecessary refinement to set apart such cases under a separate head.

The latent form, or the typhus ambulatorius of the Germans, is of more importance from the fact that the symptoms are so mild, or that so many of the ordinary symptoms are wanting or masked by those due to complications, that there is great danger of regarding the attack as of little moment. In many cases there is no symptom present but prostration and fever to indicate that the patient is ill, and these may be so slight that he may positively refuse to go to his bed, and may even insist upon pursuing his ordinary avocation, in the midst of which he is often suddenly seized with alarming symptoms, such as violent delirium, intestinal hemorrhage, or, what is more common, those due to perforation of the bowel. Still, even in these cases a careful examination will often disclose the presence of some symptom which had failed before to attract attention, and which will often reveal to us the true nature of the disease. I was myself the subject of such an attack nearly twenty years ago. Supposing that the excessive prostration from which I was suffering was due to overwork at a large army hospital in the neighborhood of Philadelphia, I determined to seek repose in travel and in change of scene. On the eve of doing so I fortunately sent for a medical friend, who, after a thorough investigation of my symptoms, succeeded in finding a few rose-colored spots upon my abdomen. The attack subsequently ran a mild but well-marked course. Occasionally, the symptoms due to a complication so predominate over those arising from the disease itself that they completely mask it. I have known bronchitis so severe as to divert in this way the attention of a skilful diagnostician from the primary disease. When vomiting, together with other symptoms of hepatic derangement, is especially prominent in the beginning of typhoid fever, the mistake is not infrequently made of attributing these symptoms to a "bilious attack."

TYPHO-MALARIAL FEVER.—Under this name, which was originally suggested by J. J. Woodward, Surgeon U.S.A., early in the summer of 1862, as a designation for a class of cases in which the symptoms of typhoid fever are associated with those of remittent, and which was especially common among the soldiers of the United States Army during the late Civil War, are probably included at least two distinct conditions: 1st, remittent fever, in which the disease, on account of the depressing circumstances surrounding the patient, assumes a typhoid form; and, 2d, typhoid fever, occurring in a patient who has also been exposed to malarial influence. This association of diseases is of course not new, or even undescribed before this name was suggested for it. Woodward thinks that he has found enough in the description of Röderer and Wagler to justify him in concluding that the epidemic which occurred at Göttingen in 1762 was really of this character. There would seem also to be no doubt from the descriptions of Dawson76 and Davis77 that the fever which decimated the British army in the Walcheren expedition was typhoid fever, modified by the malarial influence to which the soldiers were subjected. The latter of these authors says that the ileum and jejunum in the bodies of those who died of this disease were frequently found interspersed with tubercles, inflamed and ulcerated in different parts.

76 Observations on the Walcheren Diseases, Ipswich, 1810, by G. P. Dawson.

77 A Scientific and Popular View of the Fever of Walcheren, J. B. Davis, London, 1810.

In our own country the occasional association of these two diseases has also long been recognized. Drake describes it under the name of remitto-typhoid, and Dickson seems to have been perfectly familiar with it, for he says that typhoid lesions will sometimes be found in the bodies of those dead of bilious remittent. Levick recognized the presence of the symptoms of both diseases in some patients who were under his care as early as the spring of 1862, and proposed the name of miasmatic typhoid fever for this class of cases in the following June.78 Meredith Clymer has also frequently met with cases in which the symptoms of the two diseases were coexistent.79

78 Med. and Surg. Reporter, June 21, 1862.

79 The Science and Practice of Medicine, by William Aitken, M.D., 3d Amer. ed.; with additions by Meredith Clymer, M.D., Philadelphia, 1872.

As is indicated by the name given to it, the symptoms in this form of typhoid fever are modified by the presence of malarial poisoning. The cases always manifest a decided tendency to periodicity, the evening exacerbations are more decided than in the ordinary form, the remissions are often ushered in with a profuse sweating, gastric and hepatic derangements are more marked, and headache is more severe. There is frequently less mental hebetude or dulness than in ordinary typhoid fever. In some of the cases observed by Levick80 the symptoms were those of pernicious congestive remittent fever, such as copious serous discharges, not unlike those of Asiatic cholera, colliquative sweats, and other symptoms of exhaustion.

80 Amer. Journal of the Med. Sci., April, 1864.

TYPHOID FEVER IN CHILDREN.—It was formerly thought that infants and very young children were not often the subjects of typhoid fever, but, so far is this opinion from being correct, it is now known that they are especially liable to suffer from it. The rose-colored eruption is more often wanting in them than in adults, and the fever more apt to assume a distinctly remittent type; and hence, no doubt, the difficulty which is often experienced in diagnosticating this fever from other forms of fever in children. There is no doubt that many cases which have been described by authors under the head of infantile remittent fever are really examples of typhoid fever modified simply by the age of the patient. It may occur in infants not more than six months old, and is not infrequent in children of two or three years of age. Henoch,81 who has had the opportunity of observing a large number of cases, says that the rise of temperature is commonly more abrupt in children than in adults, and that the disease generally runs its course in a shorter time. The pulse is more frequent, and may be as high as 144 in cases in which the prognosis is not grave. Dicrotism is very rare. Slowness and irregularity of the pulse, like that observed in basillar meningitis, he has never seen. The nervous symptoms are not so pronounced even when the temperature is high, and they bear no relation in severity to the height of the temperature. Diarrhoea in the cases observed by Henoch was often absent during the whole course of the attack, and the stools were often brownish or greenish instead of yellow.

81 Charité Ann., 1875.

TYPHOID FEVER OF AGED PERSONS.—The modifications which the disease undergoes when it occurs in patients advanced in life are precisely those to be expected from the diminished activity of the processes of life in them, as compared with those of younger persons. The febrile movement is generally prolonged, although of low grade, the temperature rarely rising high, and frequently during convalescence sinking below the normal. The diarrhoea is commonly not so severe, the delirium so violent, or the rose-colored eruption so often present. On the other hand, adynamic symptoms, such as excessive prostration, tremors, subsultus tendinum, and the like, are frequently prominent from the beginning of the attack.

Several authors, among whom may be mentioned Arnat,82 Hornburger,83 and Greenhow,84 have described a renal form of typhoid fever. In this form the urine is blood red in color or like dark broth. It often contains albumen during the first week of this disease, usually hyaline or more or less granular casts, and occasionally red blood-discs, white cells, epithelia of kidneys and bladder, and epithelial detritus. The specific gravity is high, and the quantity is usually diminished. The prominent symptoms are pain in the region of the kidneys, oedema of face, tense and frequent pulse, great prostration, profuse epistaxis, violent delirium, and hyperpyrexia. The temperature may be 105.8°. On the other hand, the intestinal symptoms are less marked. In fatal cases the lesions of intestinal nephritis have been found at the autopsy.

82 Thesis, Sur la Fievre typhoide à forme renale.

83 Berlin klin. Wochenschrift, 1881.

84 Transactions of Clinical Society of London, 1880.

RELAPSES.—Much difference of opinion will be found to exist among authors in regard to the frequency with which relapses occur in typhoid fever, and this difference does not appear to be due to any greater frequency of this accident in some countries than in others, since Liebermeister met with them in 8.6 per cent. of the cases treated at the hospital at Basle, while, according to other German observers quoted by him, they occur in 6.3 per cent. (Gerhardt), in 11 per cent. (Bäumler), and in 3.3 per cent. (Biermer). Murchison noted them in 80 of 2591 cases in the London Fever Hospital, or in 3 per cent., and Maclagan in 13 of 128 cases at Dundee, or in 10 per cent. about. Immermann85 of Basle says that they occur in 15 per cent. of the cases, and that in very unfavorable years the proportion may be as high as 18 or 19 per cent. Prof. Henoch86 observed relapses in 16 cases out of 96, or 16.6 per cent. In my own practice they have not been very numerous. I find that in 80 cases of which I have full notes they are recorded five times, or in 6.25 per cent., and I believe this ratio correctly represents the frequency with which they have happened in all the other cases which have come under my care. Part of this difference of opinion is unquestionably attributable to the fact that under the term relapse are sometimes included two distinct conditions: (1) Mere recrudescences of fever, which occur during the stage of defervescence or that of convalescence, and which are provoked by errors of diet, mental or bodily fatigue, or some other irritating cause. They usually last a day or two, and are entirely distinct from (2), true relapses, in which all the characteristic symptoms of the primary attack are reproduced, and which commonly occur some time after the disease has apparently run its course. There is occasionally no distinct apyretic interval between the two attacks, but in by far the greater number of instances the relapse occurs in the second or third week, or even later, after the establishment of convalescence. In 20 cases reported by W. M. Ord and Seymour Taylor87 the relapse occurred in the third week of the disease in 1; in the fourth week in 5; in the sixth week in 3; in the seventh week in 7; in the eighth week in 3; in the ninth week in 1. James Jackson refers to a case in which the date of the relapse is not given, but in which he was able to detect the rose-colored eruption in the sixty-sixth day88 from the commencement of the disease. In my five cases the relapse occurred on the seventh, eighth, ninth, eleventh, and twentieth day after the apparent establishment of convalescence. In these cases the duration of the relapse was 11, 13, 17, 20, and 13 days respectively. The highest temperature noted in any of the relapses was 105°, which occurred in two cases. In both of these this temperature had also occurred in the original attacks. In one of the others, however, a temperature of over 104° F. was repeatedly observed in the relapse, while in the primary attack it had never risen above 102°.

85 Schweiz. Corr. Bl., viii. 1878.

86 Charité Ann., ii. 1875.

87 St. Thomas's Hospital Report, vol. ix., London, 1879.

88 Since the above was written I have had under my care a case of typhoid fever in which a third relapse occurred nearly four months after the patient, a woman aged thirty years, was first taken ill. The following is a brief abstract of the history of this remarkable case: The original attack began about Sept. 20, 1883, was of moderate severity, and lasted between three and four weeks. Convalescence, which seems to have been nearly complete, as the patient had left her bed, was interrupted on Nov. 1st by a relapse, during which she was admitted into the Pennsylvania Hospital. This relapse was severe, and before it had entirely run its course was itself interrupted, on Nov. 17th, by an intercurrent relapse, which lasted two weeks. During these two relapses extensive bed-sores formed upon the nates, occasioning more or less irritation and consequent febrile reaction. On Jan. 11, 1884, a third relapse occurred. This relapse was accompanied by diarrhoea, rose-colored spots, tympany, dry and brown tongue, and other characteristic symptoms of typhoid fever, the diagnosis being fully concurred in by my colleague, Dr. Morris Longstreth, who saw the case with me. Convalescence was again interrupted on Feb. 13th by fever, which continued for two weeks, but which possessed none of the characters of typhoid fever, and was clearly due to imprudence on the part of the patient. The patient is now (April 25, 1884) entirely well, and will shortly be discharged from the hospital.

The onset of a relapse is usually much more abrupt than that of the original attack. It is rarely preceded by prodromata. The temperature rises more rapidly and attains its maximum earlier, which may be much greater than in the original attack. In one case under my care it reached 105° on the evening of the first day, and temperatures of 103.5° and 104° on the evening of the second day are not infrequent.

The rose-colored eruption appears earlier. In 38 cases investigated by Murchison with reference to this point, it appeared on the third day in 7; on the fourth in 8; on the fifth in 7; on the sixth in 2; on the seventh in 12; and at a later date in 2. In the case the history of which is given below it was detected on the second day. The delirium also comes on sooner. The relapse is usually less severe, and is of shorter duration, than the primary attack. All my cases terminated in recovery. Occasionally, however, it is much more severe. In one case in which the primary attack was so mild that the patient could scarcely be persuaded to remain in bed, the relapse was so severe that for many days it was uncertain whether the patient would recover. In another intestinal hemorrhages to an alarming extent occurred on two occasions. Moreover, of Murchison's 53 cases, 7 were fatal; in 2 of the cases death was due to perforation; in 2 to peritonitis, induced by infarction of the spleen; and in 1 to abortion; and of Ebstein's 13 cases, 3 were also fatal. Occasionally, a second, and it is said even a third, relapse is noted. In one of Da Costa's cases hemorrhage from the bowels took place during a second relapse.

FIG. 15.
Pulse.

The following histories and temperature charts illustrate the prominent peculiarities of relapses occurring in typhoid fever:

TYPHOID FEVER (with a relapse).—G—— L——, æt. 20, single, seaman, Italian, admitted March 6, 1878; April 30, 1878, left in ward. Patient is unable to speak English. The following history is obtained through an interpreter: His family history is good, and he is naturally a healthy man, never having had any serious illness—no venereal disease, no cough or rheumatism, no intermittent fever, and he has not been in the habit of drinking to excess. His vessel has been lying off Gloucester Point, and two seamen have recently been similarly affected on another vessel anchored near by. For about two weeks he has had malaise, but not until three days ago was he so ill that he was obliged to give up work. He was then taken with cough, chills followed by fever, diarrhoea, headache, and pain in the abdomen. Has had no epistaxis or vomiting.

Upon admission patient has fever, his face is flushed, his tongue coated with a brown fur in the centre, dry, fissured, and red and glossy at the tip and edges. He has hebetude and some delirium, though not very active; he is deaf. His abdomen is somewhat tense and tympanitic, and covered with very numerous rose-colored spots, which disappear momentarily on pressure; they are also distributed over thighs and chest. There seems to be no tenderness on pressure over abdomen, and there is no gurgling felt. Has moderate diarrhoea, having about three stools daily, which are light yellow in color and are loose and fetid. Urine cloudy orange red, acid, 1021. No albumen.

3.7. Ord. Ol. Terebinth. gtt. x; Acid. Muriat. dil. gtt. v every two hours, with Quinine gr. viij daily, and restricted diet.

3.8. Tongue not so dry; is better. Whiskey fl. oz. ij.

3.9. Temperature elevated. Ord. to be sponged.

3.10. Has had four stools in the last twenty-four hours. Some sonorous râles over chest posteriorly. Sponging to be repeated when temperature rises.

3.11. There is some subsultus. There are more numerous râles heard over chest posteriorly.

Ord. whiskey fl. oz. v daily; turpentine stupes to chest. His diarrhoea is better; considerable hebetude.

3.12. Tongue is not so dry, and is cleaner. The spots over his body are beginning to assume more the appearance of petechiæ. They are found everywhere on his body. Has had but one stool within the last twenty-four hours.

3.13. He is brighter; skin feels better; tongue cleaner; pulse but 80. Fewer râles heard in chest. No change in his treatment.

3.14. Spots disappearing. Two stools in last twenty-four hours, not so loose in character. Pulse dicrotic.

3.15. There is no tympany. Had one natural stool yesterday. Sudaminæ over abdomen.

3.16. Doing well. Pulse very slow.

3.17. Tongue moist and clean; no diarrhoea.

3.18. No diarrhoea; spots are still to be seen, but are fading every day.

3.20. Takes a little lemon-juice, as the gums are disposed to be a little spongy.

Stop turpentine and muriatic acid.

3.25. Bowels somewhat constipated.

Ord. enema of castor oil.

3.26. Stop quinine; give whiskey fl. oz. iij only. Allowed chicken and two eggs daily.

Ord. Tr. Cinch. Co. fl. drachms ij s.t.d.

4.4. Slight chill, headache, and pain in side. Temp. 101°.

4.5. Temp. normal again; as well as before.

4.8. Has been up for a week, and steadily gaining in strength, except the slight attack on the 4th, when to-day, without his having taken any indigestible food, or indeed any reason to which it could be assigned, he was seized with a relapse, his temperature rising to 105°, but being reduced a half degree by sponging.

4.9. Spots have again appeared in great numbers, and they are very large. Last evening his temperature reached 104¾°, and was reduced to 101° by sponging.

4.10. Doing very well; spots are still making their appearance.

4.12. Diarrhoea not at all excessive.

4.15. Spots are very numerous.

4.20. Temperature nearly normal.

4.25. Doing perfectly well; up and about.

4.30. Left in ward, upon completion of my term of service.

FIG. 16.
Chart of temperature in typhoid fever with relapse.—Original attack.

FIG. 17.
Chart of temperature in typhoid fever with relapse.—Relapse.

ABORTIVE ATTACK, FOLLOWED BY TYPICAL ATTACK.—Thomas Rogers, October 15, born in Philadelphia, assistant nurse. Admitted January 25, 1883; discharged March 26, 1883, cured. Father died of hemorrhage from the lungs; mother living and healthy. Two years ago he sustained a compound fracture of the left leg from a bale of cotton falling on him; otherwise he has always enjoyed good health. For the past three months he has been assisting the nurse in the receiving ward of this hospital. Four days before admission, without unusual exposure, he had a slight chill, and felt cold for several hours. This was followed by fever and a feeling of weakness. He also had slight headache and the bowels were constipated; no epistaxis.

Upon admission patient has a good deal of hebetude, face flushed, temperature 102°, pulse 106, tongue slightly coated, moist. Has slight pain in right lumbar region, but no distension of abdomen. Urine negative.

Ord. quinine gr. viij. daily; liq. ammon. acet. fl. drachms ij. q.q.h.

Jan. 29th. More hebetude; tongue more coated with brownish fur, red at tip; bowels continue costive; opened by an enema.

31st. Is brighter and better. One doubtful rose-colored spot seen on abdomen.

Feb. 4th. The morning temperatures for the past two days have been subnormal and the evening rise is very slight. All the symptoms also indicate the approach of convalescence.

6th. More fever; pulse weaker; functional murmur heard over heart; sudamina out over abdomen. Ord. whiskey fl. oz. ij.

8th. Some fulness of abdomen; had three loose yellowish-colored stools in the last twelve hours.

9th. A few doubtful rose spots out over abdomen and back; sudamina still abundant.

10th. More tympany; numerous rose-colored spots out over abdomen and back; slight epistaxis and bronchitis.

11th. Pulse more feeble; still slight diarrhoea. Increase whiskey to fl. oz. iv.

15th. Has a good deal of hebetude, but no headache; fewer spots; pulse weaker; temperature lower. Increase whiskey to fl. oz. vj.

17th. Temperature high again; most of the spots have disappeared; slight epistaxis and subsultus; no delirium; bowels not open for two days.

20th. Temperature falling; spots disappearing; still fulness of abdomen.

25th. Temperature has been subnormal for several days, and he is doing well; tongue cleaning. Has emaciated a good deal, and is weak.

March 1st. Is convalescent; tongue has lost its redness.

8th. Continues to improve; allowed semi-solid food.

17th. Is now quite well; has gained a good deal in flesh, and is stronger.

FIG. 18.
Temperature chart of typhoid fever.—Abortive attack, followed by typical attack.

The examination of the bodies of those who have died during a relapse reveals the presence of two sets of lesions in the cicatrizing ulcers of the primary attack and the recent ulcerations of the relapse. The latter are usually less extensive, and are found to be situated at a greater distance from the lower end of the small intestine, than the former, for the reason that the Peyer's patches most remote from the ileo-cæcal valve are least apt to be affected in the primary attack.

No satisfactory explanation of these relapses has as yet been discovered. They occur in patients of both sexes and of all ages with about the same frequency. They have been attributed to errors of diet, mental and bodily fatigue, and the like, but, while we know that causes of this character often provoke recrudescences of fever, and can understand that they may act as exciting causes of a relapse in cases in which the predisposition exists, it does not seem possible that they should by themselves be able to bring back all the characteristic symptoms of a specific disease. It has been maintained by some authors that a relapse indicates that a new infection has taken place; but this hypothesis, even if we admit that it accounts for those cases in which the patient is allowed to remain in the place in which he has acquired the disease, does not explain those in which he is removed during the first attack to a hospital where all the sanitary arrangements are presumably perfect. Griesinger has endeavored to explain relapses occurring in hospitals by suggesting that they may possibly be due to a fresh contagion from other patients with typhoid fever in the same ward; but this explanation is rendered improbable by the fact that relapses have occurred when cases have been thoroughly isolated. As I have already said, during a long connection with the Pennsylvania Hospital I have only known a single case of typhoid fever to originate within its walls, although relapses probably occur in its wards with the same frequency as in other hospitals. To adopt Griesinger's explanation, it would therefore be necessary to assume that a patient just recovered from an attack of the disease is more susceptible to the action of its contagion than patients suffering from other disease; which seems improbable, to say the least. It has also been maintained that relapses are due to the inoculation of the previously healthy Peyer's patches by the typhoid poison which is thrown off with the sloughs from those first affected. Maclagan alleges that relapses are more frequently met with in cases in which constipation is present in the primary attack, a condition which he regards as favorable to absorption; but this is opposed to the experience of almost every one who has paid any attention to the subject. In the cases which have come under my own observation it certainly was not the case, diarrhoea having been present in all of them. It is more likely, as suggested by Liebermeister, that part of the poison remains latent somewhere in the body, not developed, destroyed, nor expelled during the first attack, but brought later into activity by some exciting cause. Da Costa adopts this view, and says that relapses of typhoid fever are not unlike the outbreaks of malarial fever which occur after worry or fatigue and when there has been no chance for a fresh infection. Different plans of treatment have at various times been charged with increasing the predisposition to relapses. This is especially true of the cold-water treatment, and the records at the hospital at Basle show that the proportion of relapses and the number of deaths from them are both increased under the use of cold water. Liebermeister thinks, however, that this does not necessarily prove that this treatment favors the occurrence of relapses, since before the introduction of this plan of treatment many more typhoid fever patients died in the first attack of the disease. Employing those cases only for statistical purposes in which the patients have survived the first attack, he finds that the difference at once disappears, there being 9 per cent. of relapses before the use of cold water, and 10.3 per cent. after its use.

Gerhardt89 asserts that in cases in which relapses occur the enlargement of the spleen does not diminish during the non-febrile period that intervenes between the original attack and the relapse.

89 Ziemssen's Cyclopædia, vol. i. p. 193.

Da Costa90 has shown that the appearance of the white line and furrow left by the primary attack, to which attention has already been drawn, may sometimes be of service to us in diagnosis when we see the patient for the first time during the relapse. In a case which was recently under my care their appearance certainly rendered the nature of the previous illness from which the patient had suffered much clearer than it would otherwise have been.

90 Transactions of the College of Physicians of Philadelphia, 3d S., vol. iii.

DURATION.—The mode of invasion of typhoid fever is generally so insidious, and the first symptoms so little pronounced, that the patient, even if free from mental hebetude and confusion at the time when he first comes under the care of a physician, is usually unable to fix with certainty the time of the beginning of his illness. This inability is of course most marked in what are known as walking cases, in which, notwithstanding that the disease is far advanced, the patient continues to pursue his ordinary avocations or at least refuses to go to bed. In a few cases, however, either in consequence of the violence of the first symptoms or from some other cause, opportunity is afforded to the physician of observing the disease from its onset. In many others the date of commencement may be approximately ascertained. The average duration of such cases, if uncomplicated, has been found to be between three and four weeks. According to Bartlett, the average duration of 255 cases at the Massachusetts General Hospital between the years 1824 and 1835, inclusive, was twenty-two days. It was a little less than this in patients under twenty-one years of age, and a little more in those over. As these cases occurred before the introduction into use of the clinical thermometer, and as the commencement of convalescence is fixed in them at the time when the patients were able to take a little solid food, it is possible the fever may have continued in them some time after convalescence was supposed to have been established. Of 200 cases which ended in recovery, and in which Murchison was able to ascertain with precision the date of commencement, the duration was 10 to 14 days in 7 cases, 15 to 21 days in 49 cases, 22 to 28 days in 111 cases, and 29 to 35 days in 33 cases. The mean duration of these 200 cases was 24.3 days, while that of 112 fatal cases was 27.67 days. From the same author we learn that the average stay in hospital of 500 cases which recovered was 31.24 days, and of 100 fatal cases was 16.52 days, while the average duration of the illness before admission in the 600 cases was 10.78 days. During the twenty years from Jan. 1, 1862, to Dec. 31, 1881, 621 cases of typhoid fever, 121 of which were fatal, were admitted into the Pennsylvania Hospital. No notes of many of these cases were taken, and of some of the others the notes are incomplete or inaccessible, so that they cannot, unfortunately, be used for the purpose of determining the duration of the disease. The books of the hospital, however, show the length of time each patient remained in the wards. From these we learn that the average stay of the 500 patients who recovered was 43.5 days, while that of the 121 patients who died was only 8.75 days, and that of these a large number (28) died within 48 hours after their admission to the hospital. As a rule, patients are retained at the Pennsylvania Hospital until they are fully able to return to work, while at the English and continental hospitals it is usual to discharge them when they cease to need active treatment. This circumstance probably explains the much greater average duration of the cases admitted to the Pennsylvania Hospital than that of the cases referred to by Murchison. In the abortive form the duration of the disease may not exceed ten days, and there are authors who contend that it may occasionally be very much less.

Death may occur at almost any time in the course of typhoid fever. I have never seen it myself take place before the seventh day. Murchison reports two cases in one of which the disease terminated fatally within twenty-seven hours of its commencement, and in the other on the second day. Instances are more numerous in which death has occurred on the fourth, fifth, or sixth day, but still they are comparatively infrequent, and, as a rule, the fatal termination takes place most frequently during the course of the third week. On the other hand, death may sometimes occur at a very much later period. This is, of course, the case when it occurs during a relapse, but if the fever continues after the third week the patient may sometimes die from exhaustion or from the intercurrence of a complication. Death may also be the result of a sequela long after the disease has run its course.

DIAGNOSIS.—The insidious invasion of typhoid fever, together with the absence of pathognomonic symptoms in the beginning, always renders the diagnosis difficult, and sometimes impossible, during the first week. Still, even at this time the existence of the disease may be suspected if the frequent use of the thermometer reveals from day to day a gradual increase of the fever and the existence of evening exacerbations followed by morning remissions, the temperature rising each evening from a degree to two degrees higher than it had done the preceding evening. If in addition to this character of the pyrexia there are diarrhoea with ochrey-yellow stools or an increased susceptibility to the action of cathartic medicines, epistaxis, enlargement of the spleen, slight fulness of the abdomen, with tenderness and gurgling in the right iliac region, slight hebetude and some confusion of ideas upon awakening, the diagnosis becomes more probable. During the next week the symptoms are usually much more characteristic. The presence of marked abdominal symptoms, together with the eruption of rose-colored spots, will generally render the recognition of the disease at this time an easy matter. There are, however, a few cases in which no rose-colored spots can be found, and in which the abdominal symptoms, if they exist at all, are so little marked that they do not arrest attention. Even in these cases the temperature record, when carefully studied, will often throw a good deal of light upon the nature of the disease. If the febrile movement resembles that usual in typhoid fever, if it has continued for more than a week, if the patient has not been recently exposed to malarial influences, and presents no symptoms of local disease, the diagnosis may still be made with at least an approach to certainty.

The following are the diseases which are most likely to be mistaken for typhoid fever:

Typhus fever has a course which is so essentially different from that of typhoid that in well-marked cases it would scarcely be possible to mistake one for the other. Cases, however, do occur which, in consequence of a very profuse and dark-colored eruption in the latter, or of the existence of abdominal symptoms in the former, present at first a good deal of difficulty in diagnosis. The invasion of the former is more abrupt and its duration shorter than in typhoid fever. The eruption is usually also much more copious, and appears in the former as early as the fourth, fifth, or sixth day, while that of the latter is rarely observed before the seventh day. The fever in the former is much more nearly continued in type than that of the latter. Defervescence occurs in the former by crisis; in the latter, by lysis. The expression of the physiognomy is different in the two diseases. In typhus there is a uniform dusky hue of the face, with injection of the conjunctivæ and contraction of the pupils. In typhoid fever the pupils are often widely dilated, the conjunctivæ clear, and the face pallid, with the exception of a circumscribed flush on each cheek. Diarrhoea is much less frequent in the former than in the latter, and when it does occur is not accompanied by ochrey-yellow stools. Epistaxis, tympanites, pain, and gurgling in the right iliac region, and intestinal hemorrhage, common symptoms in the latter, are very infrequently met with in the former. On the other hand, petechiæ and vibices, which are of almost constant occurrence in the former, are rarely met with in the latter. The circumstances also under which the two diseases are contracted are different. Typhus originates from overcrowding or is due to direct contagion. The origin of typhoid fever is often involved in more obscurity, but it can generally be traced either to a polluted water-supply or to defective drainage.

Relapsing fever, with due care, is not likely to be confounded with typhoid fever. The abrupt commencement of the former, the high fever, lasting for from five to seven days only, and terminating by crisis with a profuse sweat, and the period of complete apyrexia of a week's duration, followed by the relapse in which the temperature rises even higher than in the primary paroxysm, and which also terminates by crisis, form a chain of symptoms which has no counterpart in the latter. The mind in relapsing fever is usually clear, there being none of the hebetude and mental confusion commonly observed in typhoid fever. The rose-colored eruption is, moreover, wanting, and diarrhoea and tympanites are absent. On the other hand, jaundice and tenderness in the epigastric zone are more common than in typhoid fever.

Influenza sometimes, Murchison says, when epidemic, closely simulates typhoid fever, but as the two diseases occur in this country the resemblance between them is not often sufficiently strong to lead the careful observer astray. In both there are fever, prostration, sleeplessness, delirium and sweating, and occasionally deafness, diarrhoea, epistaxis, and a dry red tongue; but the onset of the attack in the former is more abrupt, its duration shorter, and subsequent convalescence more rapid than in typhoid fever. The prostration, too, is more decided in proportion to the degree of fever present. Coryza and bronchial catarrh are much more marked symptoms in the former than in the latter, while hyperæsthesia of the surface, which is present in almost every case of influenza, is only rarely met with in typhoid fever.

Remittent and typhoid fevers often prevail together in the malarious districts of this country, and, as they present many points of resemblance, they are sometimes with difficulty distinguished from each other. They both may begin with nausea and vomiting; abdominal and cerebral symptoms are common to both, and so is enlargement of the spleen. The typhoid state may supervene in either, and in both the febrile movement is remittent in character. In remittent fever, however, the remissions are more marked, and are usually accompanied with more profuse sweating, than in typhoid fever. Jaundice and other symptoms of hepatic derangement are also more common, and the pains in the back and limbs are more frequent and more severe. The effect, too, of quinine in producing a permanent reduction of the temperature, is generally more decided. On the other hand, the rose-colored eruption of typhoid fever is never present in pure remittent fever. Occasionally, in cases of the variety of typhoid fever known as typho-malarial fever, the symptoms of the latter may be so prominent as entirely to mask those of the former. In such cases the discovery of a few rose-colored spots somewhere on the surface will clearly reveal the true nature of the disease.

Epidemic cerebro-spinal meningitis differs from typhoid fever by its more abrupt invasion, by the retraction of the head which rapidly supervenes, and by the appearance a short time afterward upon different parts of the body of petechiæ, which are not likely, even at first, to be mistaken for the rose-colored spots of typhoid fever. The fever has, moreover, no constant character, but is remarkable, on the contrary, for its great irregularity. The duration of the disease is in fatal cases much shorter, death taking place not infrequently within the first week, and occasionally as early as the second or third day. On the other hand, the duration in cases which recover may be even longer than in typhoid fever.

Simple continued fever may readily be mistaken in the beginning for typhoid fever, especially in those cases complicated by diarrhoea, but, as a general rule, the different character of the febrile movement, its more abrupt commencement and termination, and its shorter duration, together with the absence of the rose-colored eruption, will usually serve to distinguish it.

The eruptive fevers are always readily distinguishable at the period of invasion from typhoid fever, and the mistake of confounding them with the latter disease may generally be avoided by a close study of the character of the pyrexia. In the eruptive fevers the temperature rises abruptly, frequently attaining its maximum in the course of twenty-four hours, and sometimes in very much less time. There are also in all of them early symptoms which indicate pretty clearly their true nature, as, for instance, the sore throat of scarlatina, the naso-pulmonary catarrh of measles, and the rachialgia of small-pox. The uncertainty, moreover, is of short duration, as the characteristic eruption appears in all of them before the fourth day.

Acute tuberculosis of the lungs is the condition which in my experience has been the most difficult to distinguish from typhoid fever. Indeed, in some cases which have come under my observation physicians of recognized skill as diagnosticians have been unable to make the discrimination until after the death of the patient. Muscular prostration, a dry brown tongue, delirium, stupor, bronchitic râles, dyspnoea, and even cyanosis, are symptoms frequently met with in both diseases, so that when the rose-colored eruption and enlargement of the spleen happen to be wanting in typhoid fever, or diarrhoea and tympany present in acute tuberculosis, as they may be, the distinction is often impossible. The diagnosis may, however, even in these cases, be sometimes made after a careful study of the temperature range, which in acute tuberculosis is irregular and rarely presents any resemblance to that which is typical of typhoid fever.

Acute tubercular meningitis has also many symptoms in common with typhoid fever, such as high fever, headache, vomiting, delirium, and stupor, but in the former disease the rose-colored eruption, epistaxis, enlargement of the spleen, and intestinal hemorrhage do not occur. Diarrhoea is also rare, and the abdomen, instead of being tympanitic, is flat, and in many cases even scaphoid. The headache, too, is much more acute than in typhoid fever, and is very apt to be associated with retraction of the head. Here, again, the frequent use of the thermometer will yield very important results in diagnosis, as the temperature range in tubercular meningitis is always irregular and does not present any resemblance to that usually observed in typhoid fever.

Several of the inflammations, especially when associated with the typhoid state, have so many symptoms in common with typhoid fever that they may very readily be mistaken for one another by a careless observer. I have known, for instance, the general disease to be entirely overlooked in a case of typhoid fever complicated by pneumonia, and, on the other hand, it has sometimes been supposed to be present in a case of pure typhoid pneumonia. Gastro-enteritis is another disease which is also occasionally confounded with typhoid fever. The diagnosis in these cases will rest principally upon the presence or absence of epistaxis, enlargement of the spleen, tympanites, the rose-colored eruption, and of a temperature range presenting some similarity to that usual in typhoid fever.

Trichiniasis is not likely to give rise to much difficulty in diagnosis, for although vomiting, diarrhoea, and the typhoid state occur in it as well as in typhoid fever, the former disease may usually be recognized by the severe muscular pains and the local oedema which are constant accompaniments of it, and by the absence of the characteristic symptoms of the latter.

PROGNOSIS.—There is no other disease in which the physician should be more careful in making a positive prognosis than in typhoid fever. On the one hand, accidents of a fatal character frequently occur in cases which are apparently progressing favorably, and, on the other, recovery has often taken place after all hope of it had been abandoned. But, although it is impossible to foretell with absolute certainty the result in any particular case, there are certain symptoms which furnish very important indications for prognosis, and the proper appreciation of which will generally enable us to arrive at a correct conclusion as regards the gravity of the disease. Prominent among these is the character of the pyrexia. A fever characterized by high temperature should always give occasion for great anxiety. This is very fully shown by the statistics of the hospital at Basle. Thus of those patients in whom the temperature did not reach 104°, only 9.6 per cent. died; of those in which it reached or exceeded 104°, 29.1 per cent. died; and, finally, of those in whose axilla the temperature rose to or above 105.8°, more than half died. Wunderlich has arrived at very nearly the same conclusions, for he says that the prognosis is very unfavorable when the temperature rises to 106.16°, that the deaths are almost twice as numerous as the recoveries when it rises to 107.06°, and that recoveries are rare when it rises to 107.24°. Murchison has, however, known recovery to follow a temperature of 108°. The highest temperature recorded in any of my cases was 106° F. In this case, which proved fatal, the temperature reached 105° F. five times. In three other cases, in all of which recovery took place, a temperature of 105.5° F. was observed. In twelve cases the temperature reached 105° F. on more than one occasion. Six of these ended fatally; in the others the patients recovered.

The prognosis is more unfavorable in a fever in which the temperature is continuously high, and in which the morning remissions are slight or wanting, than in one in which the daily fluctuations are greater, even though the temperature may reach a higher point during the evening exacerbations in the latter variety than is attained at any time in the former. Occasional remissions, even if produced by quinia or other remedies, are to be regarded as favorable omens, as they indicate that the fever tends to subside. A high morning temperature ought, therefore, to give rise to more alarm than a high evening temperature. The prognosis is grave when the morning temperature rises to 104° or is persistently above 103°. Murchison says that recovery is rare after a morning temperature of 105°. Fiedler91 saw, with a single exception, all patients die whose temperature in the morning rose to or exceeded 106.25°, while of those whose temperature in the morning rose to 105.44°, if only on one day, more than half died. Any marked deviation from the usual temperature range in the course of the fever is unfavorable. A rapid rise of temperature indicates increased danger: it may be due to the occurrence of a complication or of some other cause acting unfavorably upon the patient. A sudden and decided fall should excite even more alarm, as it is generally the consequence of a free intestinal hemorrhage. A temporary abatement of the fever, with amelioration of the other symptoms, occurring between the tenth and twentieth days, and giving rise to the hope that convalescence is about to commence, but followed by a return of the symptoms in an aggravated form, is also unfavorable. Such cases, according to Chomel, Louis, Bartlett, and Murchison, almost invariably terminate fatally.

91 Quoted by Liebermeister.

The prognosis is bad in cases in which coma or wild or violent delirium comes on early. A moderate amount of delirium, especially when it occurs only at night or upon wakening in the morning, and is readily dissipated by attracting the patient's attention, or stupor which disappears when he is thoroughly roused, is not unfavorable. Insomnia, subsultus tendinum, carphologia, slipping down in bed, incontinence of the urine or feces, and retention of urine, are all symptoms of bad omen. Rigidity of the limbs is also a bad symptom; Dr. Jackson reports six cases in which this symptom occurred, only one of which recovered. Excessive subsultus is especially unfavorable, as it is generally most marked in cases in which the ulcerations of the intestines are most extensive. Extreme deafness occurs in mild as well as severe cases; it is therefore without significance in prognosis.

In estimating the importance, in a prognostic point of view, of these various nervous symptoms, it is important to bear in mind that a degree of fever which produces no disturbance of the mental functions in a phlegmatic person will give rise to active delirium and other marked cerebral symptoms in a person of an excitable temperament.

A change in the character of the pulse and of the action of the heart is often the earliest indication of the approach of danger in typhoid fever, and both pulse and heart should therefore be carefully examined at every visit. The first change is usually a diminution in the intensity of the first sound of the heart. This is significant, as it is frequently the earliest premonition of cardiac failure, to which a large proportion of the deaths in typhoid fever is due. A pulse of 120 and over, especially if it is at the same time feeble, is also unfavorable. The important part which the frequency of the pulse plays in the prognosis is shown by the following observations made by Liebermeister at the hospital in Basle: Of 63 cases in which the pulse rose to or above 120, 40 were fatal, or nearly two-thirds. Among these 63 were 37 in which it did not rise to 140; of these, 19 were fatal, or about one-half; in 26 it rose above 140; of these, 21, or about four-fifths, were fatal. In 12 patients it rose above 150; of these, 11 died. Of those in which the pulse rose to 160, the only case that ended in recovery was that of a girl twenty-one years old suffering from an imperfectly developed typhoid. Intermittence of the pulse is unfavorable, especially, according to Hayem,92 when it occurs during the first week of the disease. In convalescence intermittence is not to be regarded as an unfavorable symptom. The prognosis is bad also in those cases in which, with excessive weakness of the pulse, there are other evidences of cardiac failure, as, for instance, congestion of the lungs, cyanosis of the surface, coldness of the extremities. A very frequent pulse is not so unfavorable in a child as in an adult, or in a person of a nervous temperament as in one of a different disposition.

92 Loc. cit.

Other unfavorable symptoms are a dry, brown tongue, excessive tympanites with great abdominal tenderness, severe diarrhoea, vomiting when it occurs late in the disease, intestinal hemorrhage, and colliquative sweats. The delusion sometimes observed in very severe cases, in which the patient declares that he is not ill, is a very bad sign, many authors, and among them Louis, asserting that they have never known recovery to take place after it has been manifested. Peritonitis is a very serious complication, whether due to perforation or to some other cause. Still, it would appear not to be invariably fatal, since recovery has occurred in cases in which all the symptoms of this complication were present.

Favorable symptoms, on the other hand, are a gradual decrease of the temperature with increasing morning remissions, moistening and cleansing of the tongue, a lessening of the delirium, and other nervous symptoms, reappearance of an intelligent expression, recognition by the patient of friends and attendants, and a diminution of the diarrhoea. A copious eruption is also regarded by many as a favorable symptom. Cases in which constipation exists generally do well. Nathan Smith never knew a patient to die whose bowels were constipated throughout the attack.

The death-rate of typhoid fever is found to vary very considerably in different years and in the different seasons of the year, as will be seen from the two following tables. Statistics as to the mortality of the disease to be reliable must therefore be based upon a large number of cases extending over a series of years.

The following table shows the number of cases admitted into the Pennsylvania Hospital during each of the twenty years ending Dec. 31, 1881, and the ratio of mortality among them:

TABLE NO. 1.

YEAR.Number
of
cases.
Number
of
recoveries.
Number
of
deaths.
Number
of deaths
within
48 hours
of
admission.
Average
stay in
cases
ending in
recovery.
Average
stay in
fatal
cases.
Percentage
of deaths.
Percentage
of deaths
after
deducting
cases fatal
within
48 hours of
admission.
18628968217541/3823.617.7
1863363332321/531/38.32.9
1864433581381/2818.616.3
1865363151381/251/213.911.4
1866231760452/3926.0
1867242040371/361/216.6
1868272340443/41014.8
1869211651351/21423.820.0
1870241951471/21120.817.4
1871322661373/4131/218.815.0
1872211653371/241/223.811.1
18731284234933.320.0
1874161240541/293/425.0
18752018214841/210.05.3
1876302192451/21130.025.0
18774834144481/2121/229.222.7
187885304952/337.5
1879171520531/3811.8
188040355247101/212.58.0
Totals,62150012128431/283/419.515.7

Out of the 621 cases admitted, 121 were fatal. This gives a death-rate of 19.5 per cent.; but if we deduct the 28 cases in which the patients died within forty-eight hours of their admission, it falls to 15.68 per cent., or about the same ratio as Murchison found to exist among the cases treated at the London Fever Hospital. Other observers have obtained slightly different results. Thus, the mortality was 11.16 per cent. in 197 cases analyzed by Dr. Hale, and 13.5 per cent. in 303 cases collected by Dr. James Jackson. Dr. Cayley93 found the death-rate of the several hospitals in London to be 17.8 per cent., and Geissler94 that it was in all the German hospitals 12.8 per cent. in 1877, and 13.5 per cent. in 1878. Flint had 18 deaths in 73 cases, or 24.4 per cent. According to Liebermeister, the ratio of mortality at the hospital at Basle during the twenty-two years from 1843 to 1864, or before the introduction of a systematic anti-pyretic treatment, was 27.3 per cent., and only 8.2 per cent. during the six years immediately following its adoption. As the results obtained at the Pennsylvania Hospital are apparently not so favorable as those reported at some of the continental hospitals, it is only proper to state that a large proportion of the cases were severe, that many of them were far advanced in the disease when admitted, and that very few of the patients were under twenty-one years of age. These are all circumstances which influence very decidedly the prognosis in typhoid fever. In no other city are the laboring classes able to surround themselves with so many comforts as in Philadelphia. This fact, fortunate as it is in the main, often operates to the disadvantage of the patient by enabling his family to indulge for a time the reluctance which it naturally feels to part with a member when sick. In the case of the young this reluctance is so hard to overcome that children with acute affections are rarely brought to hospitals for treatment. There were also special causes for the large mortality in certain years. This was particularly the case in 1862, when a large number of soldiers fresh from the battlefields of Virginia, and suffering from the typho-malarial form of the disease, were admitted into the hospital. Many of them were moribund upon admission, and others, exhausted by the fatigue incident to transportation here and by previous hardships, soon succumbed to the disease.

93 Med. Times and Gaz., 1880.

94 Schmidt's Jahrbuch.

Table 2 gives the number of cases, with the number of deaths occurring in each season, at the Pennsylvania Hospital during the last twenty years:

TABLE NO. 2.

Spring.Summer.Autumn.Winter.
Number of cases8925918291
Recoveries7319116373
Deaths16681918
Percentage of mortality18.026.210.419.8

It will be seen from this table that the highest death-rate occurred in the summer and the lowest in autumn, while there was only a slight difference between the death-rate of spring and that of winter. Murchison's experience, based on a much larger number of cases, has led him to conclude that while the disease is a little less fatal in autumn, the difference in the mortality at different seasons is very inconsiderable. Chomel believed that the percentage of deaths was highest in France during the winter months, and Bartlett held the same opinion as regards America. Epidemics of great severity have undoubtedly prevailed in winter, as the in Lowell, Mass., referred to by Bartlett, but there can be little doubt that the death-rate is highest in this country during the warm months of the year. Dr. Cleemann95 found that the monthly average mortality in Philadelphia for the ten years from 1866 to 1875 was highest in August, and next highest in September, confessedly the two months of the year when the heat in this city is most exhausting. I feel very sure I have lost patients with typhoid fever in these months and in July who would probably have recovered if the weather had been cooler. With a temperature often rising above 90° F. at midday, and sometimes for several days at a time never falling below 80°, all radiation of heat from the surface of the body is arrested, and death frequently occurs as the result of hyperpyrexia.

95 Transactions of the College of Physicians of Philadelphia, 3d S., vols. ii. and iii.

The stage of the disease at which efficient treatment is begun has a manifest influence upon the result. This is strikingly shown by some observations of Jackson: 90 cases were admitted into the Massachusetts General Hospital during the first week—of these 7 died, or 1 in 12.85; 139 cases were admitted in the second week—of these 16 died, or 1 in 8.68; 46 cases were admitted in the third week—of these 10 died, or 1 in 4.60; and 21 cases were admitted in the fourth week, and of these 5 died, or 1 in 4.20. Convalescence also occurred much earlier in those who were admitted early.

Murchison found that in a large number of cases the death-rate varied at different ages as follows: Under ten years it was 11.36 per cent.; from ten to fourteen years it was 12.86 per cent.; from fifteen to nineteen years it was 15.48 per cent.; from twenty to twenty-nine years it was 20.46 per cent.; from thirty to thirty-nine years it was 25.90 per cent.; from forty to forty-nine years it was 25 per cent.; and above fifty years it was 34.94 per cent.

According to Liebermeister, among the 1743 patients treated for typhoid fever in the hospital at Basle from 1865 to 1870, inclusive, there were 130 who were more than forty years old; of these 39, or 30 per cent., died, while the mortality among the patients under forty amounted only to 11.8 per cent. Among the cases of typhoid fever in individuals over forty years of age collected by Uhle, more than half proved fatal. According to Friedrich,96 there were, among 16,084 children treated in the Children's Hospital at Dresden, 275 cases of typhoid fever, of which 31, or not quite 11 per cent., proved fatal. Age, therefore, exercises a positive influence upon the mortality of typhoid fever. Its influence is less decided in this disease than in typhus, in which the death-rate does not reach 4 per cent. until after the age of twenty, when it rapidly rises from 12.34 per cent. until it reaches 57.03 per cent. in patients above fifty years of age. The comparatively slight mortality of typhoid fever among children is probably due to the fact that the temperature is less often continuously high in them than in adults, and that while hyperpyrexia is frequently present, it is generally better borne and less likely to produce paralysis of the heart. Liebermeister says that the only case which he has seen recover after the temperature had repeatedly risen to 107.5° F. was that of a girl fourteen years of age. It is also said that the intestinal lesions are not so severe, and the liability to complications and sequelæ less marked, in children.

96 Quoted by Liebermeister.

Typhoid fever appears to be a slightly more fatal disease in women than in men, for while in some local epidemics the percentage of deaths is greater among the latter than among the former, the reverse is found to be the case when the records of a large hospital for a number of years are carefully examined. According to Murchison, the mortality at the London Fever Hospital was about 1 per cent. higher among the female than among the male patients, and about the same difference in the death-rate of the two sexes has been reported by continental physicians. A greater disparity even than this has been observed by Liebermeister at the hospital at Basle, where the death-rate for women was 14.8 per cent., and only 12 per cent. for men. Murchison says that this excess of mortality among the former cannot be accounted for by the influence of child-bearing upon the course of the fever, since it is much more decided between the ages of five and fifteen than in the period of child-bearing.

The rich are not only as liable to contract typhoid fever as the poor, but the disease is also quite as fatal among them. Murchison found from the statistics of the London Fever Hospital that the mortality is not greater among the destitute than among the better class of patients, and expresses the opinion that in private practice enteric fever is probably more fatal among the upper classes than among the very poor. Chomel and Forget seem to have reached a similar conclusion.

All authors agree that the prognosis is unfavorable in corpulent persons, not only on account of the diminished power of resistance to disease generally which such persons exhibit, but also because the febrile movement is often intense in them, and the degenerative changes of the muscles and organs of the body which it induces are generally early developed and of high grade. Liebermeister goes so far as to say that even in the case of ill-nourished, anæmic, or chlorotic individuals the chances for life are better than in the corpulent. Murchison has also expressed the opinion that a large, muscular development is likewise an unfavorable element in prognosis, having seen the strong and robust succumb to the disease oftener than the feeble. The mortality from the disease appears to be greater in certain families than in others. This has been ascribed by some writers to peculiarities of constitution, but it may be due to other causes, as, for instance, difference in the intensity of the poison. The disease is also often very fatal among the intemperate, who usually bear the disease badly in consequence of the presence of various degenerations of one or more of the important organs of the body caused by the excessive indulgence in alcoholic stimulants; paralysis of the heart being not an infrequent cause of death among them.

Certain epidemics have been exceedingly fatal, while in others the percentage of deaths has been very small. There can be no doubt that in most of these cases there has been a difference in the virulence of the poison. Recent residence in an infected locality has been shown by Murchison and other writers to have a decided influence in increasing the fatality of the disease. Second attacks are, on the other hand, usually mild. Some diversity of opinion exists among authors in regard to the effect that pregnancy has upon the course of the disease. Murchison believes that it is a far less formidable complication than is usually thought, while Liebermeister, on the contrary, holds a directly opposite opinion. He also regards the prognosis as unfavorable when the disease occurs in childbed or a short time afterward. Individuals with disease of the heart, emphysema, or bronchial catarrh who contract typhoid fever are said to be more liable to paralysis of the heart than others, hence the existence of these diseases materially diminishes their chances of recovery.

TREATMENT.—Inasmuch as the spread and propagation of typhoid fever may be prevented to a great extent, if not entirely, by the employment of judicious sanitary measures, it is proper, before entering upon the discussion of its curative treatment, to devote a few words to the prophylaxis of the disease.

Whether the physician accepts the theory so ably advocated by Murchison, that typhoid fever may arise from exposure to the products of the fermentation of healthy feces, or adopts the view now held by a large number of investigators, that the disease is never generated in the absence of the specific germ, he will admit the great importance of an efficient system of sewerage, with a thorough flushing of the sewers at regular and frequent intervals, for disposing of the fecal discharges of the population of all towns, no matter how inconsiderable in size. No less important is it that the drains of every dwelling should be well constructed and kept in good order. They should be trapped just before they empty into the sewer, and should be provided with the means of thorough ventilation between the trap and the walls of the house by a free communication with the outer air. The soil-pipe should be carried up three or four feet above the top of the house, and every water-closet, bath-tub, stationary washstand, and sink should have its own separate trap, and none of them should be placed in rooms unprovided with a window or with some other sufficient means of ventilation. Physicians should, as sanitarians, urge upon the authorities of all cities and towns the importance of deriving their water-supply from a source unpolluted by sewerage or by any other substances likely to be deleterious to health. They should also see that when water is stored in a tank inside of a house the overflow pipe does not communicate directly with the drain, since if this is allowed to occur the water may very soon become contaminated with sewer gas, and consequently unfit for internal use.

In the case of isolated country-houses and of small villages some other means of disposing of the fecal discharges of the inhabitants than by sewers has to be found. In the great majority of instances no better way presents itself than by the ordinary cesspool. Care should, however, be taken that this is so constructed and situated that there can be no filtration of its contents into wells from which water for drinking is obtained.

As the alvine dejections of the sick are beyond question the medium by which typhoid fever is most frequently communicated to others, the importance of thoroughly disinfecting them before they have acquired the power of imparting the disease cannot well be overestimated. Liebermeister recommends that the bottom of the bed-pan should be strewed, each time before being used, with a layer of sulphate of iron, and that immediately after a passage crude muriatic acid should be poured over the fecal mass, as much as one-third or one-half of the bulk of the latter being used. He also urges, whenever it is practicable, that the contents of the bed-pan should be emptied into trenches dug anew every two days and filled up when discarded, care being of course taken that they are not located anywhere in the vicinity of wells. Murchison seems to prefer carbolic acid to other chemical agents as a means of preventing fecal fermentation. For this purpose the liquid carbolic acid may be diluted with water in the proportion of 1 to 40 to 1 to 20, or it may be mixed with sand or sawdust. I have myself employed as a disinfectant with success the solution of the chlorides sold under the name of Platt's chlorides. As the discharges must in cities, in the great majority of instances, be emptied into water-closets, these should be freely flushed with water after every time they are used; and it is well to impress upon the attendant on the sick the importance of doing this. The bed-linen of the patient and his clothes, if they are soiled by his discharges, should be removed as soon as possible, and subjected to a high degree of heat (248° F.) or soaked in a solution of the chlorides or of carbolic acid for several hours before being washed. If these precautions are observed, cases of typhoid fever may be treated in the wards of general hospitals without danger to the other patients.

In the doubt and obscurity which generally envelop the diagnosis of the disease when the physician is first called upon to treat it, it is impossible to lay down any positive rules for the management of typhoid fever at its commencement. But even in those cases which begin insidiously, if the patient is carefully examined enough of the early symptoms of typhoid fever will be detected to put the physician on his guard. The thermometer will show the existence of fever, which has a tendency to increase at night. There will generally be found to be a little diarrhoea, or at least an increased susceptibility to the action of purgative medicines; perhaps a little tympany and tenderness in the right iliac fossa, and moreover a prostration which is out of all proportion to the other symptoms.

These symptoms, it is true, are not infrequent concomitants of many diseases besides the one under consideration; but when their presence cannot be otherwise satisfactorily explained, especially if they have continued for several days, it is a safe rule in practice to regard the case as one of typhoid fever, and to regulate the treatment accordingly. The patient must be put to bed at once, and not allowed to leave it on any pretext, not even to empty his bladder, after the first week. This is a rule which should be rigidly enforced in every case, no matter how mild the symptoms may be. Its non-observance, either through the neglect of the physician or the ignorance or wilfulness of the patient, has been the cause of some disastrous results; in illustration of which it is only necessary to refer to the frequency with which perforation of the bowel occurs in walking cases of typhoid fever. Perfect quiet should be maintained in the sick room. Visitors should be excluded from it, and the attendants limited in number to those actually necessary to carry out the directions of the physician. All unnecessary talking is to be avoided, and especially conversation carried on in a low tone of voice, which is always annoying to the sick.

There is only one condition under which I should be disposed to break the rule of absolute quiet and rest laid down above, and that is when called upon to treat typhoid fever in the built-up portion of our large cities during the summer season. If the patient were still in the first week of the disease, if his circumstances were sufficiently affluent to enable him to surround himself with every comfort, and if it did not involve a journey of more than a few hours, I should unhesitatingly send him to the sea-coast. I have so often seen cases prove fatal in summer in consequence of the great heat of the city—a heat, too, which is sometimes almost as great at night as in the day-time—that I should feel that I was giving him an additional chance of life by sending him where the heat was, at least occasionally, tempered by cool breezes from the ocean. During the late war numbers of soldiers were frequently sent in the early stages of typhoid fever from the camps in the South to their homes or hospitals in the North, and it is fair to say that they did at least as well as those who remained behind. But when the journey may be accomplished by means of Pullman cars and the other appliances of modern travel the risk, and even discomfort, it involves to the patient is reduced to the minimum.

As the disease is usually one of long duration, the patient being rarely able to leave his bed under four weeks, and more frequently being obliged to keep it for a much longer time, the sick room should, wherever practicable, be large, airy, and provided with an open fireplace, which is a much more efficient means of securing thorough ventilation than an open window, while it is not liable to the objection sometimes applicable to the latter of causing a direct draught upon the patient. It is well, however, for the physician to remember that the danger from this source is very much exaggerated by the laity, and that patients in the febrile stage of typhoid fever do not readily take cold. Still, the same end may generally be attained without the least risk to the patient by opening a window in an adjoining room. The temperature of the sick room should be steadily maintained at between 65° and 68° F.

The careful regulation of the diet is also a point of great importance in the management of typhoid fever; for in this disease there are not merely the high fever and other exhausting symptoms, speedily inducing excessive prostration, loss of strength, and emaciation, common to many fevers, but there is also the peculiar ulceration of the bowels, which gives rise to danger of its own and demands special consideration in treatment. The food must therefore be not only nourishing, but also readily digestible, and not likely to create irritation in its passage through the intestines. All solid food should therefore be excluded from the dietary of the patient as long as the fever lasts. Indeed, it is better to continue this prohibition even after the subsidence of the fever if rose-colored spots are still to be seen on the abdomen or elsewhere, or if there exists a tendency to diarrhoea or any other symptom indicating that the disease has not fully run its course. Having myself seen some rather disastrous results from a too early return to solid food, I have been accustomed in my own practice to interdict its use until at least two weeks after the beginning of convalescence. Jaccoud also lays much stress upon this point, saying that the early administration of meat always gives rise to fever, to which, from its cause, he gives the name of febris carnis. On the other hand, Flint97 and Peabody have recently advocated the giving of solid food immediately after the cessation of fever, in the belief that recovery is thereby promoted. Milk as an article of diet is unquestionably to be preferred to all others in typhoid fever. It is open, it is true, to the objection of occasionally forming tough curds in the stomach, but this may generally be prevented by giving the milk in small quantities at a time, diluted with lime-water or barley-water or mixed with some farinaceous substance. No positive general rule can be laid down as to the amount to be given. This will be found to vary not only in different cases, but also in the same case at different times. Indeed, in those cases which begin abruptly with symptoms of gastro-intestinal irritation, if it is forced upon the patient in large quantities it is not only usually rejected, but also causes an aggravation of the symptoms, while after this irritation is allayed it will be digested without difficulty. As a general rule, most adult patients will be able to take from a quart and a half to two quarts of milk daily, given in quantities of from four to six ounces every two or three hours. It should be remembered, however, that if more is taken than can be assimilated it will act as an irritant and increase the diarrhoea. If, therefore, the stools contain undigested milk, the quantity should be diminished. Patients are occasionally met with, but not in as great number as is often asserted, with whom milk habitually disagrees. In these cases it must of course be replaced in whole or in part by some other article of food. Under these circumstances some one of the liquid preparations of beef may be given with advantage, although it may be objected to them also that they sometimes occasion an increase of diarrhoea. Beef-tea or beef-essence, made from the fresh meat whenever this can be obtained, is to be preferred to all others; but when it cannot, that made from the preparations of Johnston or Brand is the best substitute. When the stomach is very irritable, Valentine's meat-juice, in consequence of the smaller bulk in which it is given, often answers an admirable purpose.

97 Medical News, Mch. 29 and Apl. 5, 1884.

Various farinaceous substances, such as farina, corn-starch, and arrowroot, are also occasionally given in typhoid fever, and, although the last named would seem to be indicated in cases in which diarrhoea is a prominent symptom, their tendency to cause flatulence is so great that their use in the acute stage of the fever has not found favor among physicians generally. In convalescence, on the other hand, they are generally perfectly well borne.

The subject of the administration of alcoholic stimulants in typhoid fever may be conveniently considered in this connection. Some difference of opinion exists in regard to the quantity in which they should be given, and indeed in regard to the necessity for their use at all in many cases, as, for instance, in those of young persons whose health and habits had been good previously to the attack. I have myself treated several such cases without alcohol, and have not been able to perceive that their duration was longer and the result less favorable than in cases in which it was given in the usual amount. It is, moreover, not necessary to prescribe it always, even in very severe cases, at the beginning of an attack. When given at this time, it not infrequently does harm by increasing the fever. It should be reserved, therefore, until the action of the heart grows feeble and the first sound becomes indistinct. It is not possible to lay down any general rule as to the amount to be given, even in severe attacks. This will vary in different cases, and to a certain extent will be determined by the effects it produces. If the pulse grows stronger and the delirium diminishes under its use, it is doing good and should be continued; if, on the other hand, there is increase of delirium and restlessness, the quantity should be diminished.

In cases in which only a gentle stimulus is required wine in the form of wine-whey will often be found to meet the indication fully. Generally, however, it will be necessary to have recourse to whiskey or brandy. The choice between these may usually be left to the patient's fancy; brandy is, however, to be preferred in cases in which diarrhoea is a prominent symptom. These stimulants should be given in small quantities frequently repeated. In many cases a dessertspoonful every two or three hours, either diluted with water or, when the stomach is irritable, with carbonic acid water or given in the form of milk punch, will be sufficient. In others a tablespoonful every two hours, or even at shorter intervals, will be required, but it will rarely be necessary to exceed eight ounces a day for more than a few days at a time.

Although the physician will not often be called upon at the present day to encounter and combat the prejudice so common formerly against the free administration of water in the febrile condition, he will frequently find nurses and others not sufficiently alive to the importance of supplying it when the patient, having fallen into the typhoid state, ceases to ask for it. The high temperature which is generally present in this condition, and the rapid combustion of tissue which it causes, make a full supply of liquid an urgent necessity which it is dangerous to disregard. Water is the best of all diuretics, and it is important in this disease, as indeed it is in many others, that the functions of the kidneys should be kept active, so that the products of the combustion of the tissues may be eliminated with their secretion. Care, however, should of course be taken, as pointed out by Da Costa,98 that water is not given in such quantity that the desire for and capability of digesting food is destroyed by it.

98 Preface to Wilson's Treatise on the Continued Fevers.

In the few cases which begin abruptly with symptoms simulating those of a so-called bilious attack the practitioner will usually content himself with the administration of medicines calculated to allay the irritability of the stomach and bowels. For this purpose I have found the bicarbonate of potassa in solution, to which lemon-juice is added at the moment it is taken, so as to produce an extemporaneous effervescing draught, often an admirable remedy. In other cases I have used with advantage small doses of calomel or blue mass, followed, if necessary, by a gentle saline purge. When the symptoms have occurred soon after a hearty meal, or when there is evidence that the stomach is overloaded, it will occasionally be necessary to have recourse to an emetic. Usually, the indications for treatment at the beginning of an attack are much less definite, and even in the class of cases just referred to they become so after the subsidence of the gastro-intestinal symptoms. Indeed, the treatment in the larger number of cases must be purely symptomatic until the nature of the disease has fully declared itself. The presence of fever will suggest the use of the neutral mixture, effervescing draught, or spirit of Mindererus, combined, if there is decided tendency to evening exacerbations, with sulphate of quinia in full doses. If there is much diarrhoea, Hope's camphor mixture or opium in some other form may be given; if delirium is a prominent symptom, ice or cloths wrung out of cold water should be kept constantly applied to the head.

But even after all doubt in regard to the diagnosis has been dispelled and the existence of typhoid fever has been recognized, the treatment most in favor with physicians is in large measure symptomatic in character. It is true that various specific treatments, to which fuller reference will be made hereafter, have been lately proposed, but the results obtained by them up to the present time where they have been fairly tested are not so favorable as to induce the body of the profession to adopt them to the exclusion of all other methods. It is certain that no remedy or plan of treatment has yet been discovered which has the power of cutting the disease short, although this power has been claimed at different times for several. Thus, at one time quinia in very large doses was believed to possess it, at another venesection, and at another cold baths. But experience has shown that these and other perturbating remedies often do harm, and there is good reason to believe that the apparent good which has followed their use in a comparatively small number of instances may be better explained by supposing that an error of diagnosis has been made than by attributing to them the power of arresting the progress of the disease. Medicines are, however, by no means useless in the treatment of typhoid fever. There is no question that the disease is not only generally conducted to a favorable issue, but that its duration is often materially shortened, by their judicious use. It is evident, however, that the treatment must vary with the severity of the attack. In a few cases it is scarcely necessary to interfere with the course of the disease by the administration of medicines. In others, on the contrary, it is necessary to act promptly and energetically in order to save life.

When called upon to treat typhoid fever, if the case is a mild one with no bad symptoms, such as excessive diarrhoea, delirium, tremors, and the like, and especially if the temperature does not rise higher than 102° F., I am accustomed, after giving minute directions as to the diet and general care of the patient, to prescribe from two to three grains of sulphate of quinia four times daily. No great power in reducing the temperature of the body can, of course, be claimed for these doses, but experience has shown that the impression which they make is useful, and they do not interfere with the administration of the drug in larger quantities should this become necessary. Their action, too, is tonic, and, as they rarely produce cinchonism, the objection often made to the use of larger doses does not apply to them. I am also in the habit of adding to each dose of quinia from ten to fifteen drops of one of the mineral acids. These acids were originally prescribed in typhoid fever under the impression that they neutralized the cause of the disease, which was supposed to be an alkaline poison. Although the results of recent research, which tend to show that the cause of the disease is an organized germ, give no support to this theory, they continue to be used by a large number of physicians of experience. I do not know that any satisfactory explanation of their action in typhoid fever has ever been given. They are certainly tonics, and are therefore indicated, if not in the beginning of the disease, as soon as the strength begins to fail. If, as the disease progresses, the tongue becomes dry and fissured, and if there is much tympany, it will be well to give, in addition to the quinia, ten drops of the oil of turpentine in mucilage every two hours. This was a favorite remedy of the late George B. Wood, the distinguished professor of the Theory and Practice of Medicine in the University of Pennsylvania, who attributed the improvement in the symptoms which generally follows its use to a direct influence of this medicine upon the ulcers in the intestines. Although inclined to believe that the correct explanation of this improvement is its stimulating action upon the circulation and secretions, I fully agree with him in regard to its usefulness in many cases. Under its use I have often seen the dry, fissured, and shrivelled tongue grow moist and throw off its coating much earlier than in all probability it would otherwise have done.

No other than this simple treatment is required in a large number of cases, but even in mild cases symptoms occasionally arise which render necessary some modification of it. It will, however, be more convenient to postpone the discussion of this part of the treatment of typhoid fever until after the treatment of the more serious forms of the disease has been considered.

When typhoid fever assumes a severe type, the success of the physician in the management of the disease will depend largely upon the readiness with which he detects indications for treatment and the promptness with which he meets them. Usually, one of the first symptoms to demand attention is the high temperature. This is not only an early symptom in many bad cases, but may continue throughout the attack; or it may suddenly supervene in cases in which the fever has previously been moderate in degree, and when excessive may be the direct or indirect cause of death. The reduction of the temperature is therefore an indication the importance of which cannot well be overestimated. Fortunately, there are several methods by which this end may be accomplished. It will, however, be necessary for our purpose to consider only two of them in detail: 1, the cold-water treatment; 2, sulphate of quinia in full doses.

The cold-water treatment is not new, since it was practised in the form of cold effusion in the treatment of fevers as long ago as 1787 by Currie of Liverpool, who may be said to have introduced it, and who asserted that it had the power not merely of moderating the symptoms of these diseases, but also, in many cases, of cutting them short. It enjoyed at first a high degree of popularity, which lasted for from twenty to thirty years, but finally fell into disuse, probably in consequence of the exaggerated character of the claims which were made for it by its advocates. Although resorted to from time to time in various parts of the world, the merit of having brought it again into notice seems to be due to Brand of Stettin, who published a work on The Hydrotherapy of Typhoid Fever in 1861. Still more recently, the recorded observations of Bartels, Jürgensen, Ziemssen, and Liebermeister in Germany, and of Wilson Fox and others in England, have so far restored the treatment to professional favor that there are few physicians either in this country or abroad who do not occasionally have recourse to it.

The cold-water treatment may be applied in several different ways: 1, the cold bath; 2, the graduated bath; 3, cold affusions; 4, the cold pack; 5, cold sponging; 6, cold compresses; and 7, frictions with ice. They all act in the same manner, and depend for their efficacy upon their power of abstracting heat from the body, and are useful just in proportion as they do this. There is no reason for believing that they have the power to modify the conditions upon which the production of heat depends, but there is, on the other hand, no doubt that under their use distressing and dangerous symptoms, such as coma, stupor, subsultus, and the like, are often much relieved. They probably act, therefore, by diminishing the metamorphosis of the tissues, and the consequent loading of the blood with excrementitious products which the hyperpyrexia has a tendency to promote.

The cold bath is the most effective of all the methods of applying the cold-water treatment. Liebermeister recommends that the bath for an adult should be at the temperature of 68° F., and its duration should be about ten minutes; if, however, the patient shows signs of great weakness, it should not exceed seven. After the bath he should be wrapped up in a dry sheet or light blanket and put back in bed. If the pulse should then show signs of failing, or if there should be shivering or any other evidence of weakness, he should be given a glass of wine or brandy or a dose of some other diffusible stimulus, and bottles containing hot water should be applied to his feet. The process of cooling goes on for some time after the patient's removal from the bath, for while a thermometer placed in the axilla will show that the external temperature is immediately affected by it, the same instrument placed in the rectum will indicate a gradual fall, which will continue in many cases for at least half an hour. Shortly after this the temperature will be observed to rise, and in many cases it will not be more than two hours before it has attained its former height. Liebermeister therefore recommends that the thermometer should be frequently used, and that the baths should be repeated as often as the temperature rises to 103° F. or above it. He has himself given them as often as every two hours, or as many as two hundred during an entire illness, but usually finds that not more than six or eight a day are required. It often requires some persuasion to overcome the repugnance which most patients feel at first for these baths, and the shock of being suddenly immersed in cold water is agreeable to very few. Later, this repugnance, he says, entirely disappears. Intestinal hemorrhage, perforation of the bowel, and great weakness of the heart's action are all contraindications to the use of the cold bath. They are especially to be avoided, according to Liebermeister, when the force of the circulation is so far reduced that the surface of the body is cold while the interior is very hot. On the other hand, the advocates of this plan of treatment contend that the existence of pneumonia or of hypostatic congestion of the lungs is not a sufficient reason for abandoning it, the congestion often disappearing under its use.

The graduated bath possesses some advantages over the cold bath, as its use involves less of a shock to the system. It is therefore more suitable than the latter for nervous and excitable patients, for persons of advanced age or of general feebleness of constitution, or for very young children. In it the temperature of the water, which at the time of the immersion of the patient should be at or above 95° F., is cooled by the gradual addition of cold water until it is reduced to 72°, or below this point. These baths, to produce the same effect as the cold baths, must be of longer duration. They are contraindicated in the same conditions as the latter, but to a less degree.

Although fully willing to admit the good effects of the cold bath in many cases, having been, of course, myself a witness of them, I am indisposed to have recourse to it except in cases of hyperpyrexia of such intensity that death seems imminent and only to be averted by energetic treatment, or in cases in which other antipyretic remedies have failed to reduce the temperature; and for the following reasons: 1. In the first place, it is generally possible to produce a decided effect by the other methods of applying the cold-water treatment, with much less discomfort to the patient. 2. In a private house it is not always practicable to have a bath brought to the bedside of the patient, and in a general hospital to do so often would occasion a good deal of annoyance to the other patients in the same ward, and I have seen ill result from carrying him some distance to the bathroom. But even where the bath is brought directly to his bedside, it involves so much movement, and is sometimes the cause of so much excitement, that its good effects are more than neutralized by its bad.

Cold affusions, while not nearly so efficacious in reducing the temperature of the body as the cold bath, are open to many of the objections which may be urged against the latter mode of treatment. They are, therefore, rarely employed at the present time. Liebermeister, however, thinks that they may sometimes be resorted to with good effect for their brisk stimulating effect on the psychical functions or the respiration.

The cold pack possesses the advantage over the cold bath and cold affusions of involving less movement on the part of the patient and of being less terrifying to children, and may therefore be resorted to in cases in which the latter method of applying the cold-water treatment is contraindicated, as, for instance, in persons of feeble circulation. It is, however, inferior to either of them in its cooling effects, and must be longer applied to produce the same effect. Liebermeister estimates that a course of four consecutive packs, of from ten to twenty minutes' duration apiece, is about equivalent in effect to a cold bath of ten minutes.

Cold sponging is assigned a very low place among the methods of abstracting heat from the body by many writers. It has, however, often been in my hands of much service, and its easy application and the comfort which patients derive from it are certainly strong recommendations in its favor. I have employed it frequently in cases of intestinal hemorrhage, and even in cases of great debility, and have never yet had any reason to repent my having done so. The addition of a little vinegar to the water has seemed to me to increase the effect of the sponging.

Cold compresses, either in the form of cloths wet with cold water or bladders filled with ice, can only produce a local fall of temperature, and therefore, except when applied to the head, can be of little service.

Frictions with ice are a powerful means of depressing the temperature of the body, and may therefore be resorted to in cases of intense hyperpyrexia when for some reason the cold bath cannot be obtained, and when there are no contraindications to the latter.

Liebermeister classes cold drinks, the internal administration of ice, and the injection of cold water among the means of cooling the body in fevers; but it is doubtful if any great reduction of temperature can be brought about by any of these remedies in the quantities in which it would be safe to use them. The first two, and to a less extent the last, meet a very important indication, that of supplying water to the system. Their free use, therefore, forms a very important part of the treatment of typhoid fever.

Luton of Rheims99 extols the Diæta hydrica in the treatment of typhoid fever. The patient receives absolutely nothing else to drink but water, which is given in large quantities, for from four to six days. No nourishment is given until the beginning of the third week, and first of all milk. If fever returns, the water is given again. Medicines such as quinia and eucalyptus are given in adynamic conditions, which Luton says are rare under this treatment. He believes that the increase of the typhoid germs is prevented by absolute diet and abundant supply of water.

99 Journal de thérapie, Oct., 1880.

Quinia to produce a decided antipyretic effect must be given in large quantities. Murchison says that a dose of from fifteen to twenty grains causes within an hour or two a fall of the temperature, and, to a less extent, of the pulse, which may last from twelve to eighteen hours, and that he has never known any other disagreeable symptoms result from its use than noises in the ears, temporary acceleration and irregularity of the respiration, and occasional vomiting. This quantity will often, however, be found to be insufficient to produce a notable reduction of the fever, and it is therefore necessary occasionally to increase it. Liebermeister usually gives to adults from twenty-two to forty-five grains of the sulphate or the muriate of quinia, and this dose must positively be taken within the space of half an hour, or, at the most, an hour, as it is useless, he says, to expect the full benefit of this dose to appear if the dose is divided and its administration is extended over a longer time. He never repeats it in less than twenty-four hours, and, as a rule, does not give it again under two days. Jürgensen has exceeded the dose of forty-five grains without observing any bad effects from it. When these large doses are taken the fall of the temperature usually begins a few hours after the administration of the medicine, the minimum being reached in from six to twelve hours, and it is usually not until the second day that the temperature attains its former height. It is found in practice that the most decided results are obtained when the medicine is given in the evening, so that the time of its fullest antipyretic effects will coincide with that of the morning remission. When these large doses produce vomiting, as they occasionally will, the quinia must be given by the rectum or hypodermically.

Quinia possesses the great advantage over the cold bath that it may be given in conditions in which it would be dangerous to resort to the latter. The existence of great cardiac weakness, of perforation of the bowel, or of intestinal hemorrhage do not usually constitute contraindications to its use. In my own practice I have not often found it necessary to have recourse to much larger doses than those recommended by Murchison, preferring to repeat them if necessary rather than to give a single dose of even half a drachm.

It will be well, in this connection, to allude briefly to a few other remedies which have been given for their antipyretic effect. One of these is digitalis, which has been administered for this purpose in very large doses. Thus, Liebermeister recommends that from eleven to twenty-two grains should be given in the course of thirty-six hours. I have never used this drug in these doses, and therefore cannot speak of its effects from personal knowledge of them. I have frequently had recourse to it, however, in more moderate doses, and I think with advantage.

Another is sodium salicylate. This remedy has been used largely in England and Germany, and to a less extent in this country. It has been claimed for it that it has the power of destroying the germs of typhoid fever, but Stricker100 finds it difficult to accord it this property in the face of the fact that he has had three cases of typhoid fever under his observation which occurred in patients just recovered from rheumatism, which had been treated by this drug. My own experience with it in the treatment of this disease is small, but has been unsatisfactory. While it is undoubtedly an antipyretic, the pulse becomes weak and the inspiration less strong under its use. The brain symptoms do not diminish under its use. Indeed, it is said to produce narcotism in some cases. Dr. Jahn101 and Dr. Jh. Platzer102 speak more favorably of it, but admit that its administration is occasionally attended by the inconveniences above referred to. The verdict of the profession in regard to it, tersely expressed by one who had given it a fair trial, appears to be that it is a remedy that brings nothing but disappointment to the physician and disaster to the patient.

100 Deutsche Milit.-arztl Zeitsch., 1877.

101 Deutsches Arch. f. klin. Med., 1877.

102 Bayr. Arztl. Intell. Bl., 1877.

Eucalyptus, in the form of the tincture, is also a favorite remedy with many practitioners. Dr. Benj. Bell103 is in the habit of giving a teaspoonful every three or four hours in a wineglass of water, and asserts that it diminishes the tendency to diarrhoea and the duration of the illness.

103 Edin. Med. Jour., Aug., 1881.

The different varieties of typhoid fever require slight modifications only of the treatment laid down above. In the typho-malarial form, especially in those cases in which the malarial element predominates, and in which there is a marked tendency to remission, the early administration of quinia in full antiperiodic doses is urgently called for. In some cases which he had the opportunity of observing in the army, A. L. Cox104 found great advantage from the use of arsenious acid in rather large doses. When the disease attacks elderly people, an early resort to alcoholic stimulants is usually necessary, in consequence of the excessive prostration it induces in them. Henoch and Steffen105 assert that cold baths are not so well borne in children as in adults. Their influence is transitory only, and their use has sometimes been followed by fatal collapse. In the renal form dry, and in some cases cut, cups should be applied externally and saline diuretics given internally.

104 Outlines of the Chief Camp Diseases of the United States Armies, by Joseph Janvier Woodward, M.D., Philada., 1863.

105 Jahrb. f. Korhde, 1880.

SYMPTOMS REQUIRING SPECIAL TREATMENT.—Vomiting, when it occurs early in the disease, is usually checked by the administration of an emetic and by the application of sinapisms to the epigastrium. The use of emetics is no longer advisable when it occurs after the first week. It is better then to trust to small doses of hydrocyanic or carbolic acid, aromatic spirit of ammonia, or bismuth. It will often be found that lime-water and milk will remain upon the stomach when every other article of food or medicine is rejected. In some severe cases which have been under my care the symptom was permanently relieved by the frequent administration of small quantities of brandy in iced soda-water. When vomiting is a consequence of peritonitis it usually resists every form of treatment.

Diarrhoea, if the number of the stools does not exceed two or three in the course of twenty-four hours, does not need special treatment. When, however, it is more severe, prompt measures should be taken to check it. Under these circumstances laudanum injections have seemed to me to be by far the best remedy. It is not necessary that these injections should always contain a large amount of laudanum or that they should be repeated frequently. In many cases twenty drops once a day will be found to be sufficient, and it is rarely necessary to exceed forty drops twice daily. Opium given by the mouth or in suppository in equivalent quantity does not act with anything like the same efficacy. If the laudanum injections fail to restrain the diarrhoea, it will be well to have recourse, in combination with opium, to the subnitrate of bismuth or the acetate of lead. Nitrate of silver was at one time much employed in the treatment of typhoid fever, especially by the late J. K. Mitchell of this city, but was afterward suffered to fall into neglect. Its use has been recently, to a certain extent, revived in consequence of the recommendation of William Pepper,106 who claims for it the power of modifying the course of the disease. I have given it in a number of cases, but have never been able to satisfy myself that it possessed this power. I have therefore ceased to prescribe it except in the later stages of the disease, when the symptoms indicate that the intestinal ulcers are in an atonic condition. Under these circumstances it has appeared to me to promote their cicatrization. It is important, however, to remember that diarrhoea is occasionally caused and kept up by more food being given to the patient than he can assimilate, and it is therefore a good rule to examine the stools from time to time to see whether they contain curds of milk or other undigested food. If such is found to be the case, the amount of nourishment should be diminished, and it will be well also to prescribe pepsin either in powder or in solution.

106 Philadelphia Medical Times, Feb. 12, 1881.

Tympanites also occasionally requires treatment, for in addition to interference with the descent of the diaphragm and other discomfort it produces, the distended condition of the bowels directly increases the risk of perforation. It is usually sufficient to employ embrocations or stupes of equal parts of sweet oil and oil of turpentine, or of camphor liniment. If the tympanites coexist with constipation, enemata, either with or without a small quantity of oil of turpentine, may often be used with advantage. If it is extreme, an intestinal tube should be introduced very carefully into the rectum and the gas drawn off. Charcoal has occasionally been administered in this condition with a view of preventing decomposition of the intestinal contents. Tympanites occasionally rapidly supervenes upon the occurrence of perforation, and must then, of course, be treated with due reference to the latter condition.

Intestinal hemorrhage is a symptom which always demands prompt attention, no matter how slight it may seem to be, for it is to be remembered that not only is there a danger of its recurrence, but that the quantity of blood which appears in the stools is by no means a reliable measure of that actually lost, as more blood frequently remains in the intestines than appears externally. In estimating its severity, it is therefore proper to take into consideration the gravity of the other symptoms which attend it, such as the fall of temperature, feebleness of the pulse. In many cases the enforcement of absolute rest, with the administration of cold drink and a small amount of opium to diminish peristaltic action, is all that is needed. In cases in which the symptoms are graver it will be necessary to have recourse to more energetic measures. Under these circumstances the hypodermic injection of from three to five grains of ergotin, repeated if necessary, has seldom in my experience failed to check the hemorrhage. Dilute sulphuric acid, oil of turpentine, and acetate of lead have also proved themselves useful remedies in my hands. The application of ice to the surface of the abdomen has also been said to be attended with good results, but the objections to the use of this remedy in the condition of collapse, which is so apt to accompany profuse intestinal hemorrhage, are so evident that it is unnecessary to discuss them here. Monsel's solution, tannic acid, and various other mineral and vegetable astringents have been recommended for their direct effect upon the bleeding surface, but, even admitting that they can, when administered by the mouth, reach this unaltered or in a sufficient state of concentration to be active, it is evident that they could only do so after the loss of valuable time.

When perforation occurs, it is obvious that the indications for treatment are to preclude the extravasation of the contents of the intestine into the cavity of the peritoneum, and to prevent the peritonitis which is a consequence of this accident from becoming general. Both of these indications are met by the administration of opium, which diminishes, and, if pushed, arrests, the peristaltic action of the intestines. By means of it the bowels may be kept as free from movement as if "placed in splints." A grain of solid opium may be given every hour until a decided effect is produced, or if it is found to disagree with the stomach an equivalent quantity may be given by the rectum, or it may be substituted by morphia administered by the mouth or hypodermically. With the same view, food is to be allowed in small quantities only at a time, and of a character capable of digestion by the stomach. A light poultice, or, if there is much evidence of inflammation, ice should be applied to the abdomen. It has been recommended also, in cases in which the peritonitis has become general, to apply leeches to the abdomen, but few patients in this condition will readily bear the loss of much blood. It is very important not to interfere with the constipation which results from the above treatment, and which it is one of its objects to promote, until all inflammatory symptoms have been absent for at least a week, when a simple enema may be administered. Peritonitis resulting from other causes than perforation of the intestine does not require any modification of the above treatment.

Severe abdominal pain, when it occurs independently of inflammation, is best treated by the application to the abdomen of light poultices, to which two or three teaspoonfuls of laudanum may be added.

Constipation is an occasional symptom, but it rarely calls for active interference. When it is present so early in the course of the disease that the diagnosis is still uncertain, and has continued for several days, it is best to prescribe a small dose of castor oil; a dessertspoonful is generally sufficient. The late Dr. Gerhard was in the habit of giving a tablespoonful of sweet oil in this condition. The inordinate action which frequently follows the administration of these mild purgatives will often dispel all uncertainty as to the nature of the disease we have to do with. When it occurs in a more advanced stage of the disease it is best met by the administration of enemata, which may contain, if there is much tympanites present, a small quantity of oil of turpentine. Under all circumstances it will be well to remember the advice given by Baglivi two centuries ago, to avoid the use of active cathartics in this disease.107

107 "Fuge purgantia tanquam postem," Opera Omnia Medico-Practica et Anatomica, Georgii Baglivi, 1788.

The headache which is sometimes a distressing symptom in the beginning of the disease is usually relieved by the application to the head of cloths constantly wet with ice-water or by that of a bladder filled with ice and lard. If it is very severe and does not yield to these remedies, a few leeches applied to the temples often have a very happy effect in moderating the pain. Murchison recommends that the cold affusion should be administered by simply placing the patient's head over a basin at the edge of the bed and pouring water on it from a height of two or three feet. He also says that warm fomentations are to be preferred to cold in aged and infirm persons of feeble circulation. Sleeplessness will often disappear under the use of remedies presented for the relief of the headache and other nervous symptoms. It is occasionally so persistent as to call for special treatment. If it occur early in the disease, it will generally be sufficient to prescribe at bedtime ten grains each of potassium bromide and chloral, repeated once or twice during the night. Later in the disease this combination ceases to produce any effect, besides which chloral cannot be administered with safety after the action of the heart becomes feeble. It is therefore necessary to have recourse to opium in some form or other. There are, it is true, theoretical objections to its use in typhoid fever, such as its interference with digestion and its tendency to lock up the secretions; but these will hardly weigh in the balance against the fact that the patient will die of exhaustion if the insomnia is allowed to continue, and that under certain circumstances opium is the only drug which will procure the needed sleep. The form in which it is given is not a matter of much importance. I prefer the deodorized tincture, twenty or thirty drops, repeated if necessary in an hour or two, but I have seen good results from the solid opium and from the hypodermic injection of morphia. When the insomnia is attended by much tremor and muttering delirium, camphor may be added to the opium, and given throughout the day as well as in the evening. Violent delirium is sometimes also relieved by administration of opium and alcoholic stimulants, and by the application of cold to the head. It is also much lessened by the cold-water treatment. When the delirium is so violent that restraint is necessary, it is better that this should be mechanical than that it should be left wholly in the hands of ignorant and untrained nurses. A folded sheet passed over the chest of the patient and fastened to the sides of the bed is frequently all that is needed. Stupor requires very much the same kind of treatment as that suitable for the other forms of nervous derangement. If it is extreme, counter-irritants should be applied to the nape of the neck and cold to the head. The late Dr. Wood was in the habit of shaving the hair and applying a blister to the scalp of a patient in this condition, and I have seen good in more than one instance result from this treatment. The urine should also be examined, and if the quantity be insufficient diuretics should be given. If it contain albumen or blood, counter-irritants and even cut cups should be applied to the loins. It is also important, if the patient be in this condition, that the physician should not rest satisfied with the nurse's assurance that the urine is passed freely, but should from time to time examine the supra-pubic region himself. It is not infrequently found under these circumstances that there is really retention, and that the wetting of the bed upon which the nurse has based her assurances is really the consequence of the dribbling of urine from an over-distended bladder. I have known of serious results, such as cystitis, paralysis of the bladder, having followed the neglect of this very simple precaution. Convulsions when they occur are to be treated by the application of cold to the head and counter-irritants to other parts of the body.

Epistaxis is rarely so severe as not to yield to the use of simple remedies, such as the application of ice to the forehead or back of the neck, or of styptics locally. In a few cases, however, it is profuse, and it will then be necessary to have recourse to hypodermic injections of ergotin, as in the case of hemorrhage from the intestines, or to plug the nostrils.

TREATMENT OF COMPLICATIONS.—Hypostatic congestion of the lungs, as it is usually the consequence of feeble action of the heart, is best treated by frequently changing the position of the patient, and by remedies calculated to increase the power of the organ, such as alcoholic stimulants, ammonium carbonate, oil of turpentine, and digitalis. Recent German authors, however, regard digitalis as a dangerous remedy when the heart has undergone the granular degeneration peculiar to fevers. It had, therefore, better not be given if the congestion occurs late in the disease. I have myself always found advantage from the application of turpentine stupes to the chest, and occasionally from the application of dry cups. Pneumonia when it occurs as a complication does not render necessary a material modification of the above treatment. It may sometimes be well, if it occur early in a robust subject, to take blood locally, but it can rarely be justifiable to do so by venesection.

Bed-sores may generally be prevented by frequently changing the position of the patient, by scrupulous attention to cleanliness, and by bathing prominent parts of his body with whiskey and alum. These parts should also be protected from pressure by the judicious arrangement of pillows and cushions. When redness or abrasions appear the part should be covered with soap plaster smoothly spread upon kid. This application may be continued even after the formation of sloughs. As soon, however, as these show a tendency to suppurate poultices should be applied, and the resulting ulcer treated as if occurring under other circumstances.

Thrombosis of the femoral vein is best treated by elevating the affected leg and enveloping it with flannel cloths saturated with hot vinegar and water. Thrombosis of other veins is to be treated on the same general principles. When an artery becomes obliterated, whether from embolism or thrombosis, the part which it supplies should be surrounded with cotton wool and every effort made to favor the establishment of the collateral circulation. If sphacelus occurs, it should be treated on general surgical principles.

TREATMENT OF CONVALESCENCE.—The importance of a strict adherence to a liquid diet in the early part of the convalescence of typhoid fever has already been alluded to. The ulcers in the intestines often remain unhealed for some time after the subsidence of the fever, and errors in diet may therefore readily cause recrudescences of fever, if not true relapses. These recrudescences are sometimes produced by very slight causes. I have seen them follow undue mental exercise or worry, or sitting up too early or too long. It is therefore important to guard our patients at this stage of the disease from undue fatigue or excitement of any kind. Medicines calculated to build up the strength and to improve the nutrition are clearly indicated at this time. If the diarrhoea should persist, nitrate or oxide of silver, sulphate of copper, and subnitrate of bismuth in appropriate doses, given with a little opium, will all be found to be useful remedies. When, on the contrary, constipation exists, it is still necessary to avoid the use of drastic cathartics; indeed, even mild laxatives should be given by the mouth only after enemata have failed to produce a movement of the bowel.

SPECIFIC TREATMENT.—The search for a specific remedy in typhoid fever is not new. It is as old as the theory that the disease is generated by a specific cause. The hypothesis that this is an alkaline poison led many years ago to the use of the mineral acids, and it was only after experience had shown that they were without power to cut the disease short, or even to control many of its symptoms, that they ceased in a measure to be prescribed. Calomel also, which was occasionally resorted to formerly for its antiphlogistic effects upon the intestinal lesions, has been lately recommended in Germany in the treatment of typhoid fever on account of its supposed antidotal properties. Seven and a half grains of the drug, and in some cases a much larger dose, are given four times daily on alternate days as soon as the nature of the disease is fully recognized. It is claimed for this treatment that when it is begun early the rate of mortality and the duration of the disease are much less under it than under any other. Its advocates admit, however, that the latter is not always the case—a variety in the action of the medicine which is attributed to a difference in the way in which the poison of the disease has been taken into the body. Salivation is rarely produced by the calomel. The diarrhoea, which is at first increased by it, subsequently diminishes, and the administration of each dose is followed by a decided although temporary reduction of temperature.

A diminution in the rate of mortality is also said to have been obtained by the administration of iodine in typhoid fever, although the results of its use are on the whole less favorable than those of calomel. Liebermeister recommends that three or four drops of a solution of one part of iodine, two parts of iodide of potassium, and ten parts of water should be given every two hours in a glass of water.

Number
treated.
Number
died.
Percentage of
mortality.
Non-specifically treated3776918.3
Treated with calomel2232611.7
Treated with iodine2393514.6
Total83913015.5

The preceding table, which is taken from Liebermeister's article on typhoid fever in Ziemssen's Cyclopædia, is based upon the results of treatment in 839 cases, a part of which were treated with iodine, a part with calomel, and a part with neither, the rest of the treatment being exactly alike in all of them, and consisting in the employment of a partial antipyretic method.

James C. Wilson108 has recently used with great success in the treatment of typhoid fever the following prescription, which was originally suggested by Roberts Bartholow: Rx. Tinct. Iodinii fl. drachm ij.; Acid. Carbolici liq. fl. drachm j.—M. Of this, one, two, or even three drops is given in a sherry-glassful of ice-water after food every two or three hours during the day and night. In addition to this prescription his patients were given a dose of calomel varying in amount from seven and a half to ten grains, which was repeated on every alternate night until three or four doses had been administered in the course of the first six or eight days. Of sixteen cases so treated, none proved fatal, although eight of them were severe, the temperature reaching or exceeding 104° F. Da Costa109 has used carbolic acid in this disease, and has found it useful in controlling the diarrhoea and in lowering the temperature, but suggests the use of thymol in doses of from half a grain to one grain as a substitute, on account of its greater acceptability to the stomach. C. G. Rothe110 recommends a mixture of carbolic acid, tincture of digitalis, tincture of aconite, brandy, and tincture of iodine. Its use causes a decided fall of temperature and diminution in the frequency of the pulse.

108 Transactions of the College of Physicians of Philadelphia, 3d Series, vol. vi., Philadelphia, 1883, p. 221.

109 Ibid., p. 234.

110 Deutsche Med. Wochenschr., 1880.

My own experience does not enable me to speak with positiveness of the value of this plan of treatment. Indeed, it has been used in so few cases, to the exclusion of all other remedies, that it is difficult to decide how far the result attained in cases treated by them is due to them, and how far to the other therapeutic means employed. With the testimony of such competent observers as those above named it is only proper that the treatment by iodine and carbolic acid should have a further trial. More caution, it seems to me, is required in the use of calomel. While it is probable that in a few cases the intestinal lesions may be favorably modified by the purgation which it induces, the indiscriminate use of the drug is, I am sure, calculated to do more harm than good.