The comparison between the United States in 1790 and Australia in 1891, with which Mr. A. F. Weber opens his essay on The Growth of Cities in the Nineteenth Century[10] well illustrates how the tendency of population toward agglomeration in cities is one of the most striking social phenomena of the present age. Both countries were in nearly a corresponding state of development at the time of bringing them into the comparison. The population of the United States in 1790 was 3,929,214; that of Australia in 1891 was 3,809,895; while 3.14 per cent of the people of the United States were then living in cities of ten thousand or more inhabitants, 33.20 per cent of the Australians are now living in such cities. Similar conditions or the tendency toward them are evident in nearly every country of the world. What are the forces that have produced the shifting of population thus indicated; what the economic, moral, political, and social consequences of it; and what is to be the attitude of the publicist, the statesman, and the teacher toward the movement, are questions which Mr. Weber undertakes to discuss. The subject is a very complicated and intricate one, with no end of puzzles in it for the careless student, and requiring to be viewed in innumerable shifting lights, showing the case in changing aspects; for in the discussion lessons are drawn by the author from every country in the family of nations. Natural causes—variations in climate, soil, earth formation, political institutions, etc.—partly explain the distribution of population, but only partly. It sometimes contradicts what would be deduced from them. Increase and improvement in facilities for communication help the expansion of commercial and industrial centers, but also contribute to the scattering of population over wider areas. The most potent factors in attracting people to the cities were, in former times, the commercial facilities they afforded, with opportunities to obtain employment in trade, and are now the opportunities for employment in trade and in manufacturing industries. The cities, however, do not grow merely by accretions from the outside, but they also enjoy a new element of natural growth within themselves in the greater certainty of living and longer duration of life brought about by improved management and ease of living in them, especially by improved sanitation, and it is only in the nineteenth century that any considerable number of cities have had a regular surplus of births over deaths. Migration cityward is not an economic phenomenon peculiar to the nineteenth century, but is shown by the study of the social statistics and the bills of mortality of the past to have been always a factor important enough to be a subject of special remark. It is, however, a very lively one now, and "in the immediate future we may expect to see a continuation of the centralizing movement; while many manufacturers are locating their factories in the small cities and towns, there are other industries that prosper most in the great cities. Commerce, moreover, emphatically favors the great centers rather than the small or intermediate centers." In examining the structure of city populations, a preponderance of the female sex appears, and is explained by the accentuated liability of men over women in cities to death from dangers of occupation, vice, crime, and excesses of all kinds. There are also present in the urban population a relatively larger number of persons in the active period of life, whence an easier and more animated career, more energy and enterprise, more radicalism and less conservatism, and more vice, crime, and impulsiveness generally may be expected. Of foreign immigrants, the least desirable class are most prone to remain in the great cities; and with the decline of railway building and the complete occupation of the public lands the author expects that immigrants in the future will disperse less readily than in the past, but in the never-tiring energy of American enterprise this may not prove to be the case. As to occupation, the growth of cities is found to favor the development of a body of artisans and factory workmen, as against the undertaker and employer, and "that the class of day laborers is relatively small in the cities is reason for rejoicing." It is found "emphatically true that the growth of cities not only increases a nation's economic power and energy, but quickens the national pulse.... A progressive and dynamic civilization implies the good and bad alike. The cities, as the foci of progress, inevitably contain both." The development of suburban life, stimulated by the railroad and the trolley, and the transference of manufacturing industries to the suburbs, are regarded as factors of great promise for the amelioration of the recognized evils of city life and for the solution of some of the difficulties it offers and the promotion of its best results.
Dr. James K. Crook, author of The Mineral Waters of the United States and their Therapeutic Uses,[11] accepts it as proved by centuries of experience that in certain disorders the intelligent use of mineral waters is a more potent curative agency than drugs. He believes that Americans have within their own borders the close counterparts of the best foreign springs, and that in charms of scenery and surroundings, salubrity of climate and facilities for comfort, many of our spas will compare as resorts with the most highly developed ones of Europe. The purpose of the present volume is to set forth the qualities and attractions of American springs, of which we have a large number and variety, and the author has aimed to present the most complete and advanced work on the subject yet prepared. To make it so, he has carefully examined all the available literature on the subject, has addressed letters of inquiry to proprietors and other persons cognizant of spring resorts and commercial springs, and has made personal visits. While a considerable number of the 2,822 springs enumerated by Dr. A. C. Peale in his report to the United States Geological Survey have dropped out through non-use or non-development, more than two hundred mineral-spring localities are here described for the first time in a book of this kind. Every known variety of mineral water is represented. The subject is introduced by chapters on what might be called the science of mineral waters and their therapeutic uses, including the definition, the origin of mineral waters, and the sources whence they are mineralized; the classification, the discussion of their value, and mode of action; their solid and gaseous components; their therapeutics or applications to different disorders; and baths and douches and their medicinal uses. The springs are then described severally by States. The treatise on potable waters in the appendix is brief, but contains much.
In Every-Day Butterflies[12] Mr. Scudder relates the story of the very commonest butterflies—"those which every rambler at all observant sees about him at one time or another, inciting his curiosity or pleasing his eye." The sequence of the stories is mainly the order of appearance of the different subjects treated—which the author compares to the flowers in that each kind has its own season for appearing in perfect bloom, both together variegating the landscape in the open season of the year. This order of description is modified occasionally by the substitution of a later appearance for the first, when the butterfly is double or triple brooded. As illustrations are furnished of each butterfly discussed, it is not necessary that the descriptions should be long and minute, hence they are given in brief and general terms. But it must be remembered that the describer is a thorough master of his subject, and also a master in writing the English language, so that nothing will be found lacking in his descriptions. They are literature as well as butterfly history. Of the illustrations, all of which are good, a considerable number are in colors.
Dr. M. E. Gellé's L'Audition et ses Organes[13] (The Hearing and its Organs) is a full, not over-elaborate treatise on the subject, in which prominence is given to the physiological side. The first part treats of the excitant of the sense of hearing—sonorous vibrations—including the vibrations themselves, the length of the vibratory phenomena, the intensity of sound, range of audition, tone, and timbre of sounds. The second chapter relates to the organs of hearing, both the peripheric organs and the acoustic centers, the anatomy of which is described in detail, with excellent and ample illustrations. The third chapter is devoted to the sensation of hearing under its various aspects—the time required for perception, "hearing in school," the influence of habit and attention, orientation of the sound, bilateral sensations, effects on the nervous centers, etc., hearing of musical sounds, oscillations and aberrations of hearing, auditive memory, obsessions, hallucinations of the ear, and colored audition.
Prof. Andrew C. McLaughlin's History of the American Nation[14] has many features to recommend it. It aims to trace the main outlines of national development, and to show how the American people came to be what they are. These outlines involve the struggle of European powers for supremacy in the New World, the victory of England, the growth of the English colonies and their steady progress in strength and self-reliance till they achieved their independence, the development of the American idea of government, its extension across the continent and its influence abroad—all achieved in the midst of stirring events, social, political, and moral, at the cost sometimes of wars, and accompanied by marvelous growth in material prosperity and political power. All this the author sets forth, trying to preserve the balance of the factors, in a pleasing, easy style. Especial attention is paid to political facts, to the rise of parties, to the development of governmental machinery, and to questions of government and administration. In industrial history those events have been selected for mention which seem to have had the most marked effect on the progress and make-up of the nation. It is to be desired that more attention had been given to social aspects and changes in which the development has not been less marked and stirring than in the other departments of our history. Indeed, the field for research and exposition here is extremely wide and almost infinitely varied, and it has hardly yet begun to be worked, and with any fullness only for special regions. When he comes to recent events, Professor McLaughlin naturally speaks with caution and in rather general terms. It seems to us, however, that in the matter of the war with Spain, without violating any of the proprieties, he might have given more emphasis to the anxious efforts of that country to comply with the demands of the administration for the institution of reforms in Cuba; and, in the interest of historical truth, he ought not to have left unmentioned the very important fact that the Spanish Government offered to refer the questions growing out of the blowing up of the Maine to arbitration and abide by the result, and our Government made no answer to the proposition.
Mr. W. W. Campbell's Elements of Practical Astronomy[15] is an evolution. It grew out of the lessons of his experience in teaching rather large classes in astronomy in the University of Michigan, by which he was led to the conclusion that the extensive treatises on the subject could not be used satisfactorily except in special cases. Brief lecture notes were employed in preference. These were written out and printed for use in the author's classes. The first edition of the book made from them was used in several colleges and universities having astronomical departments of high character. The work now appears, slightly enlarged, in a second edition. In the present greatly extended field of practical astronomy numerous special problems arise, which require prolonged efforts on the part of professional astronomers. While for the discussion of the methods employed in solving such problems the reader is referred to special treatises and journals, these methods are all developed from the elements of astronomy and the related sciences, of which it is intended that this book shall contain the elements of practical astronomy, with numerous references to the problems first requiring solution. The author believes that the methods of observing employed are illustrations of the best modern practice.
In The Characters of Crystals[16] Prof. Alfred J. Moses has attempted to describe, simply and concisely, the methods and apparatus used in studying the physical characters of crystals, and to record and explain the observed phenomena without complex mathematical discussions. The first part of the book relates to the geometrical characteristics of crystals, or the relations and determination of their forms, including the spherical projection, the thirty-two classes of forms, the measurement of crystal angles, and crystal projection or drawing. The optical characters and their determination are the subject of the second part. In the third part the thermal, magnetic, and electrical characters and the characters dependent upon electricity (elastic and permanent deformations) are treated of. A suggested outline of a course in physical crystallography is added, which includes preliminary experiments with the systematic examination of the crystals of any substance, and corresponds with the graduate course in physical crystallography given in Columbia University. The book is intended to be useful to organic chemists, geologists, mineralogists, and others interested in the study of crystals. The treatment is necessarily technical.