Evidence of past or present interstitial keratitis—a dusky and thin sclerotic in the ciliary region and slight clouds here and there in the corneal substance, there being no scars on its surface—or of disseminated choroiditis; patches of absorption especially around the periphery.

A radiating series of narrow cicatricial scars extending right across the mucous membrane of the lips, or a network of linear cicatrices on the upper lip and around the nostrils, as well as at the corners of the mouth and on the lower lip.

Periosteal nodes on one or many of the long bones; sudden, symmetrical, and complete deafness, without otorrhoea and unattended by pain or other subjective symptoms.213

213 In a few instances there has been noticed an arrest of sexual development; in one case of Hughlings Jackson's there was such an entire absence of all sexual characteristics that it was supposed that the ovaries had been destroyed by syphilitic inflammation in early life.

Late or tardy hereditary syphilis is rarely dangerous to life. The prognosis is almost unvaryingly favorable unless some grave visceral complication, such as interstitial pneumonia, gummata of the brain, liver, or kidney, or meningeal and periosteal inflammation within the cranium, should occur.

TREATMENT.—The prophylactic treatment, or that directed to the health and sexual relations of the parents previous to conception, has already been sufficiently considered. That of the mother during pregnancy, after having conceived from a syphilitic husband, or having had antecedent syphilis, or having contracted it by direct contagion subsequent to impregnation, is simply that of acquired syphilis in either adult or child. Mercury in its full physiological dose is the drug indicated. It may not be amiss to combine with it iodide of potassium in moderate doses, but the practice of employing the latter to the exclusion of the former is both theoretically and clinically unsound. Care should especially be taken to give it in such a manner, either by inunction or vaporization or so guarded with opium, that it will not produce any irritating effect on the intestinal canal, the sympathy between which and the uterus may, in the event of a strong purgative action being set up, lead to an abortion.214

214 "In respect to prophylaxis as applied to infants, all chances of infection should be entirely removed whenever constitutional symptoms exist or the nature of the primary symptoms renders them probable. Our caution should be carried still farther, and in the absence of all appreciable symptoms we should assure ourselves by the antecedents, so far as possible, that the parents are not under the influence of a syphilitic diathesis; in which case they may give birth to infected infants until appropriate treatment shields the latter from infection. With still stronger reasons, when the mother during pregnancy is affected with primary syphilitic symptoms of such a character as to give rise to secondary symptoms, or if the latter already exist, we should hasten to cope with them, and, far from regarding pregnancy as a contra-indication to treatment, should recollect that it generally prevents the disease in the infant, and when skilfully administered obviates the frequent abortions which syphilis excites. When primary symptoms have been contracted by the mother a short time before delivery, since the infant may be infected in its passage into the world, the same course should be followed with it as with a person who has just exposed himself to an impure connection" (Ricord, note on prophylaxis of venereal disease appended to his edition of John Hunter's Treatise on Venereal, Philada., 1853, p. 481).

As we have seen that the pathology, the stages, and the general course of hereditary syphilis are all closely related to or identical with the same phenomena in the acquired disease, and so know that they both depend upon the same ultimate cause, whatever that may be—a virus, a fungus, or a degraded cell—it follows that the same principles should govern us in the treatment of the one as in that of the other.

We know from clinical experience that mercury exercises an almost controlling influence over the secondary manifestations of acquired syphilis, whether by acting as a true antidote or as a tonic, or by virtue of its property of hastening destructive metamorphosis and thereby facilitating the absorption or elimination of new cell-growths. We know also that iodide of potassium, probably by virtue of its powerful stimulating influence on the lymphatic system, has an equal power over the tertiary growths, which by their pressure upon or situation in important tissues or organs may be so destructive. There is no reason, therefore, by analogy why these drugs should not, comparatively speaking, be equally beneficial in hereditary syphilis; and such is, indeed, found to be the case. In the latter affection, however, there are two elements which should modify the treatment somewhat, and must be taken into consideration. These are—1st. The existence of a more or less profound cachexia influencing all the nutritive and formative processes, and in itself, entirely apart from any definite specific involvement of vital organs, threatening life. 2d. The not infrequent occurrence during the secondary period of symptoms—notably gummata—belonging to the tertiary stage.

The first indication is met by making the treatment from first to last not only antisyphilitic, but also supporting or even stimulating; and with this object in view especial attention should be paid to nutrition. It may be stated, axiomatically, that for every reason, whenever it is within the bounds of possibility, the nurse of a syphilitic child should be its mother. To her it is harmless—to every other woman, not already syphilized, it is in the highest degree dangerous. Space will not permit me here to discuss the medico-legal aspect of the interesting question as to relations between such children and the outside world, especially as represented in their nurses. It will suffice to say that it is criminal and legally punishable to induce any healthy woman to act as wet-nurse to a syphilitic child unless she does so with a full knowledge of the risks she runs in undertaking that function. In the rare cases where with such information she still consents to suckle the child a written statement of the facts of the case should be signed by her, with the proper legal formalities, for the protection of the physician and the family.