APPLETONS' POPULAR SCIENCE MONTHLY. (continued 4)

When nineteen years old, young Sternberg began his medical studies with Dr. Horace Lathrop, in Cooperstown, N. Y. Afterward he attended the courses of the College of Physicians and Surgeons, New York, and was graduated thence in the class of 1860. Before he had fairly settled in practice the civil war began, and the attention of all young Americans was directed toward the military service. Among these was young Dr. Sternberg, who, having passed the examination, was appointed assistant surgeon May 28, 1861, and was attached to the command of General Sykes, Army of the Potomac. He was engaged in the battle of Bull Run, where, voluntarily remaining on the field with the wounded, he was taken prisoner, but was paroled to continue his humane work. On the expiration of his parole he made his way through the lines and reported at Washington for duty July 30, 1861—"weary, footsore, and worn." Of his conduct in later campaigns of the Army of the Potomac, General Sykes, in his official reports of the battles of Gaines Mill, Turkey Ridge, and Malvern Hill, said that "Dr. Sternberg added largely to the reputation already acquired on the disastrous field of Bull Run." He remained with General Sykes's command till August, 1862; was then assigned to hospital duty at Portsmouth Grove, R. I., till November, 1862; was afterward attached to General Banks's expedition as assistant to the medical director in the Department of the Gulf till January, 1864; was in the office of the medical director, Columbus, Ohio, and in charge of the United States General Hospital at Cleveland, Ohio, till July, 1865. Since the civil war he has been assigned successively to Jefferson Barracks, Mo.; Fort Harker and Fort Riley, Kansas; in the field in the Indian campaign, 1868 to 1870; Forts Columbus and Hamilton, New York Harbor; Fort Warren, Boston Harbor; Department of the Gulf and New Orleans; Fort Barrancas, Fla.; Department of the Columbia; Department Headquarters; Fort Walla Walla, Washington Territory; California; and Eastern stations. He was promoted to be captain and assistant surgeon in 1866, major and surgeon in 1875, lieutenant colonel and deputy surgeon general in 1891, and brigadier general and surgeon general in 1893. He has also received the brevets of captain and major in the United States Army "for faithful and meritorious services during the war," and of lieutenant colonel "for gallant service in performance of his professional duty under fire in action against Indians at Clearwater, Idaho, July 12, 1877." In the discharge of his duties at his various posts Dr. Sternberg had to deal with a cholera epidemic in Kansas in 1867, with a "yellow-fever epidemic" in New York Harbor in 1871, and with epidemics of yellow fever at Fort Barrancas, Fla., in 1873 and 1875. He served under special detail as member and secretary of the Havana Yellow-Fever Commission of the National Board of Health, 1879 to 1881; as a delegate from the United States under special instructions of the Secretary of State to the International Sanitary Conference at Rome in 1885; as a commissioner, under the act of Congress of March 3, 1887, to make investigations in Brazil, Mexico, and Cuba relating to the etiology and prevention of yellow fever; by special request of the health officer of the port of New York and the advisory committee of the New York Chamber of Commerce as consulting bacteriologist to the health officer of the port of New York in 1892; and he was a delegate to the International Medical Congress in Moscow in 1897.

Dr. Sternberg has contributed largely to the literature of scientific medicine from the results of his observations and experiments which he has made in these various spheres of duty.

His most fruitful researches have been made in the field of bacteriology and infectious diseases. He has enjoyed the rare advantage in pursuing these studies of having the material for his experiments close at hand in the course of his regular work, and of watching, we might say habitually, the progress of such diseases as yellow fever as it normally went on in the course of Nature. Of the quality of his bacteriological work, the writer of a biography in Red Cross Notes, reprinted in the North American Medical Review, goes so far as to say that "when the overzeal of enthusiasts shall have passed away, and the story of bacteriology in the nineteenth century is written up, it will probably be found that the chief who brought light out of darkness was George M. Sternberg. He was noted not so much for his brilliant discoveries, but rather for his exact methods of investigation, for his clear statements of the results of experimental data, for his enormous labors toward the perfection and simplification of technique, and finally for his services in the practical application of the truths taught by the science. His early labors in bacteriology were made with apparatus and under conditions that were crude enough." His work in this department is certainly among the most important that has been done. Its value has been freely acknowledged everywhere, it has given him a world-wide fame, and it has added to the credit of American science. The reviewer in Nature (June 22, 1893) of his Manual of Bacteriology, which was published in 1892, while a little disposed to criticise the fullness and large size of the book, describes it as "the latest, the largest, and, let us add, the most complete manual of bacteriology which has yet appeared in the English language. The volume combines in itself not only an account of such facts as are already established in the science from a morphological, chemical, and pathological point of view, discussions on such abstruse subjects as susceptibility and immunity, and also full details of the means by which these results have been obtained, and practical directions for the carrying on of laboratory work." This was not the first of Dr. Sternberg's works in bacteriological research. It was preceded by a work on Bacteria, of 498 pages, including 152 pages translated from the work of Dr. Antoine Magnin (1884); Malaria and Malarial Diseases, and Photomicrographs and How to make Them. The manual is at once a book for reference, a text-book for students, and a handbook for the laboratory. Its four parts include brief notices of the history of the subject, classification, morphology, and an account of methods and practical laboratory work—"all clear and concise"; the biology and chemistry of bacteria, disinfection, and antiseptics; a detailed account of pathogenic bacteria, their modes of action, the way they may gain access to the system, susceptibility and immunity, to which Dr. Sternberg's own contributions have been not the least important; and saprophytic bacteria in water, in the soil, in or on the human body, and in food, the whole number of saprophytes described being three hundred and thirty-one. "The merit of a work of this kind," Nature says, "depends not less on the number of species described than on the clearness and accuracy of the descriptions, and Dr. Sternberg has spared no pains to make these as complete as possible." The bibliography in this work fills more than a hundred pages, and contains 2,582 references. A later book on a kindred subject is Immunity, Protective Inoculations, and Serum Therapy (1895). Dr. Sternberg has also published a Text-Book of Bacteriology.

Bearing upon yellow fever are the Report upon the Prevention of Yellow Fever by Inoculation, submitted in March, 1888; Report upon the Prevention of Yellow Fever, illustrated by photomicrographs and cuts, 1890; and Examination of the Blood in Yellow Fever (experiments upon animals, etc.), in the Preliminary Report of the Havana Yellow-Fever Commission, 1879. Other publications in the list of one hundred and thirty-one titles of Dr. Sternberg's works, and mostly consisting of shorter articles, relate to Disinfectants and their Value, the Etiology of Malarial Fevers, Septicæmia, the Germicide Value of Therapeutic Agents, the Etiology of Croupous Pneumonia, the Bacillus of Typhoid Fever, the Thermal Death Point of Pathogenic Organisms, the Practical Results of Bacteriological Researches, the Cholera Spirillum, Disinfection at Quarantine Stations, the Infectious Agent of Smallpox, official reports as Surgeon General of the United States Army, addresses and reports at the meetings of the American Public Health Association, and an address to the members of the Pan-American Congress. One paper is recorded quite outside of the domain of microbes and fevers, to show what the author might have done if he had allowed his attention to be diverted from his special absorbing field of work. It is upon the Indian Burial Mounds and Shell Heaps near Pensacola, Fla.

The medical and scientific societies of which Dr. Sternberg is a member include the American Public Health Association, of which he is also an ex-president (1886); the American Association of Physicians; the American Physiological Society; the American Microscopical Society, of which he is a vice-president; the American Association for the Advancement of Science, of which he is a Fellow; the New York Academy of Medicine (a Fellow); and the Association of Military Surgeons of the United States (president in 1896). He is a Fellow of the Royal Microscopical Society of London; an honorary member of the Epidemiological Society of London, of the Royal Academy of Medicine of Rome, of the Academy of Medicine of Rio de Janeiro, of the American Academy of Medicine, of the French Society of Hygiene, etc.; was President of the Section on Military Medicine and Surgery of the Pan-American Congress; was a Fellow by courtesy in Johns Hopkins University, 1885 to 1890; was President of the Biological Society of Washington in 1896, and of the American Medical Association in 1897; and has been designated Honorary President of the Thirteenth International Medical Congress, which is to meet in Paris in 1900. He received the degree of LL. D. from the University of Michigan in 1894, and from Brown University in 1897.

Dr. Sternberg's view of the right professional standard of the physician is well expressed in the sentiment, "To maintain our standing in the estimation of the educated classes we must not rely upon our diplomas or upon our membership in medical societies. Work and worth are what count." He does not appear to be attached to any particular school, but, as his Red Cross Notes biographer says, "has placed himself in the crowd 'who have been moving forward upon the substantial basis of scientific research, and who, if characterized by any distinctive name, should be called the New School of Scientific Medicine.' He holds that if our practice was in accordance with our knowledge many diseases would disappear; he sees no room for creeds or patents in medicine. He is willing to acknowledge the right to prescribe either a bread pill or a leaden bullet. But if a patient dies from diphtheria because of a failure to administer a proper remedy, or if infection follows from dirty fingers or instruments, if a practitioner carelessly or ignorantly transfers infection, he believes he is not fit to practice medicine.... He rejects every theory or dictum that has not been clearly demonstrated to him as an absolute truth."

While he is described as without assumption, Dr. Sternberg is represented as being evidently in his headquarters as surgeon general in every sense the head of the service, the chief whose will governs all. Modest and unassuming, he is described as being most exacting, a man of command, of thorough execution, a general whose eyes comprehend every detail, and who has studied the personality of every member of his corps. He is always busy, but seemingly never in a hurry; systematic, accepting no man's dictum, and taking nothing as an established fact till he has personal experimental evidence of its truth. He looks into every detail, and takes equal care of the health of the general in chief and of the private.

His addresses are carefully prepared, based on facts he has himself determined, made in language so plain that they will not be misunderstood, free from sentiment, and delivered in an easy conversational style, and his writings are "pen pictures of his results in the laboratory and clinic room."

The thirty-first year of the Peabody Museum of American Archæology and Ethnology was signalized by the transfer of its property to the corporation of Harvard College, whereby simplicity and greater permanence have been given to its management. The four courses of instruction in the museum were attended by sixteen students, and these, with others, make twenty-one persons, besides the curator, who are engaged in study or special research in subjects included under the term anthropology. Special attention is given by explorers in the service of the museum to the investigation of the antiquities of Yucatan and Central America, of which its publications on Copan, the caves of Loltun, and Labná, have been noticed in the Monthly. These explorations have been continued when and where circumstances made it feasible. Among the gifts acknowledged in the report of the museum are two hundred facsimile copies of the Aztec Codex Vaticanus, from the Duke of Loubat, an original Mexican manuscript of 1531, on agave paper, from the Mary Hemenway estate; the extensive private archæological collection of Mr. George W. Hammond; articles from Georgia mounds, from Clarence B. Moore, and other gifts of perhaps less magnitude but equal interest. Mr. Andrew Gibb, of Edinburgh, has given five pieces of rudely made pottery from the Hebrides, which were made several years ago by a woman who is thought to have been the last one to make pottery according to the ancient method of shaping the clay with the hands, and without the use of any form of potter's wheel. Miss Maria Whitney, sister of the late Prof. J. D. Whitney, has presented the "Calaveras skull" and the articles found with it, and all the original documents relating to its discovery and history. Miss Phebe Ferris, of Madisonville, Ohio, has bequeathed to the museum about twenty-five acres of land, on which is situated the ancient mound where Dr. Metz and Curator Putnam have investigated for several years, and whence a considerable collection has been obtained. Miss Ferris expressed the desire that the museum continue the explorations, and after completing convert the tract into a public park. Mr. W. B. Nicker has explored some virgin mounds near Galena, Ill., and a rock shelter and stone grave near Portage, Ill. The library of the museum now contains 1,838 volumes and 2,479 pamphlets on anthropology.

Correspondence.

DO ANIMALS REASON?

Editor Popular Science Monthly:

Dear Sir: In connection with the discussion of the interesting subject Do Animals Reason? permit me to relate the following incident in support of the affirmative side of the question:

Some years ago, before the establishment of the National Zoölogical Park in this city, Dr. Frank Baker, the curator, kept a small nucleus of animals in the rear of the National Museum; among this collection were several monkeys. On a hot summer day, as I was passing the monkey cage I handed to one of the monkeys a large piece of fresh molasses taffy. The animal at once carried it to his mouth and commenced to bite it. The candy was somewhat soft, and stuck to the monkey's paws. He looked at his paws, licked them with his tongue, and then turned his head from side to side looking about the cage. Then, taking the candy in his mouth, he sprang to the farther end of the cage and picked up a wad of brown paper. This ball of paper he carefully unfolded, and, laying it down on the floor of the cage, carefully smoothed out the folds of the paper with both paws. After he had smoothed it out to his satisfaction, he took the piece of taffy from his mouth and laid it in the center of the piece of paper and folded the paper over the candy, leaving a part of it exposed. He then sat back on his haunches and ate the candy, first wiping one paw and then the other on his hip, just as any boy or man might do.

If that monkey did not show reason, what would you call it?

Yours etc., H. O. Hall,

Library Surgeon General's Office, United States Army.

Washington, D. C., October 2, 1899.

Editor's Table.

HOME BURDENS.

The doctrine has gone abroad, suggested by the most popular poet of the day, that "white men" have the duty laid upon them of scouring the dark places of the earth for burdens to take up. Through a large part of this nation the idea has run like wildfire, infecting not a few who themselves are in no small degree burdens to the community that shelters them. The rowdier element of the population everywhere is strongly in favor of the new doctrine, which to their minds is chiefly illustrated by the shooting of Filipinos. We do not say that thousands of very respectable citizens are not in favor of it also; we only note that they are strongly supported by a class whose adhesion adds no strength to their cause.

It is almost needless to remark that a very few years ago we were not in the way of thinking that the civilized nations of the earth, which had sliced up Asia and Africa in the interest of their trade, had done so in the performance of a solemn duty. The formula "the white man's burden" had not been invented then, and some of us used to think that there was more of the filibustering spirit than of a high humanitarianism in these raids upon barbarous races. Possibly we did less than justice to some of the countries concerned, notably Great Britain, which, having a teeming population in very narrow confines, and being of old accustomed to adventures by sea, had naturally been led to extend her influence and create outlets for her trade in distant parts of the earth. Be this as it may, we seemed to have our own work cut out for us at home. We had the breadth of a continent under our feet, rich in the products of every latitude; we had unlimited room for expansion and development; we had unlimited confidence in the destinies that awaited us as a nation, if only we applied ourselves earnestly to the improvement of the heritage which, in the order of Providence, had become ours. We thanked Heaven that we were not as other nations, which, insufficiently provided with home blessings, were tempted to put forth their hands and—steal, or something like it, in heathen lands.

Well, we have changed all that: we give our sympathy to the nations of the Old World in their forays on the heathen, and are vigorously tackling "the white man's burden" according to the revised version. It is unfortunate and quite unpleasant that this should involve shooting down people who are only asking what our ancestors asked and obtained—the right of self-government in the land they occupy. Still, we must do it if we want to keep up with the procession we have joined. Smoking tobacco is not pleasant to the youth of fifteen or sixteen who has determined to line up with his elders in that manly accomplishment. He has many a sick stomach, many a flutter of the heart, before he breaks himself into it; but, of course, he perseveres—has he not taken up the white boy's burden? So we. Who, outside of that rowdy element to which we have referred, has not been, whether he has confessed it or not, sick at heart at the thought of the innocent blood we have shed and of the blood of our kindred that we have shed in order to shed that blood? Still, spite of all misgivings and qualms, we hold our course, Kipling leading on, and the colonel of the Rough Riders assuring us that it is all right.

Revised versions are not always the best versions; and for our own part we prefer to think that the true "white man's burden" is that which lies at his own door, and not that which he has to compass land and sea to come in sight of. We have in this land the burden of a not inconsiderable tramp and hoodlum population. This is a burden of which we can never very long lose sight; it is more or less before us every day. It is a burden in a material sense, and it is a burden in what we may call a spiritual sense. It impairs the satisfaction we derive from our own citizenship, and it lies like a weight on the social conscience. It is the opprobrium alike of our educational system and of our administration of the law. How far would the national treasure and individual energy which we have expended in failing to subdue the Filipino "rebels" have gone—if wisely applied—in subduing the rebel elements in our own population, and rescuing from degradation those whom our public schools have failed to civilize? Shall the reply be that we can not interfere with individual liberty? It would be a strange reply to come from people who send soldiers ten thousand miles away for the express purpose of interfering with liberty as the American nation has always hitherto understood that term; but, in point of fact, there is no question of interfering with any liberty that ought to be respected. It is a question of the protection of public morals, of public decency, and of the rights of property. It is a question of the rescue of human beings—our fellow-citizens—from ignorance, vice, and wretchedness. It is a question of making us as a nation right with ourselves, and making citizenship under our flag something to be prized by every one entitled to claim it.

It is not in the cities only that undesirable elements cluster. The editor of a lively little periodical, in which many true things are said with great force—The Philistine—has lately declared that his own village, despite the refining influences radiated from the "Roycroft Shop," could furnish a band of hoodlum youths that could give points in every form of vile behavior to any equal number gathered from a great city. He hints that New England villages may be a trifle better, but that the farther Western States are decidedly worse. It is precisely in New England, however, that a bitter cry on this very subject of hoodlumism has lately been raised. What are we to do about it?

Manifestly the hoodlum or incipient tramp is one of two things: either he is a person whom a suitable education might have turned into some decent and honest way of earning a living, or he is a person upon whom, owing to congenital defect, all educational effort would have been thrown away. In either case social duty seems plain. If education would have done the work, society—seeing that it has taken the business of public education in hand—should have supplied the education required for the purpose, even though the amount of money available for waging war in the Philippines had been slightly reduced. If the case is one in which no educational effort is of avail, then, as the old Roman formula ran, "Let the magistrates see that the republic takes no harm." Before, therefore, our minds can be easy on this hoodlum question, we must satisfy ourselves thoroughly that our modes of education are not, positively or negatively, adapted to making the hoodlum variety of character. The hoodlum, it is safe to say, is an individual in whom no intellectual interest has ever been awakened, in whom no special capacity has ever been created. His moral nature has never been taught to respond to any high or even respectable principle of conduct. If there is any glory in earth or heaven, any beauty or harmony in the operations of natural law, any poetry or pathos or dignity in human life, anything to stir the soul in the records of human achievement, to all such things he is wholly insensible. Ought this to be so in the case of any human being, not absolutely abnormal, whom the state has undertaken to educate? If, as a community, we put our hands to the educational plow, and so far not only relieve parents of a large portion of their sense of responsibility, but actually suppress the voluntary agencies that would otherwise undertake educational work, surely we should see to it that our education educates. Direct moral instruction in the schools is not likely to be of any great avail unless, by other and indirect means, the mind is prepared to receive it. What is needed is to awaken a sense of capacity and power, to give to each individual some trained faculty and some direct and, as far as it goes, scientific cognizance of things. Does any one suppose that a youth who had gone through a judicious course of manual training, or one who had become interested in any such subject as botany, chemistry, or agriculture, or who even had an intelligent insight into the elementary laws of mechanics, could develop into a hoodlum? On the other hand, there is no difficulty in imagining that such a development might take place in a youth who had simply been plied with spelling-book, grammar, and arithmetic. Even what seem the most interesting reading lessons fall dead upon minds that have no hold upon the reality of things, and no sense of the distinctions which the most elementary study of Nature forces on the attention.

But, as we have admitted, there may be cases where the nature of the individual is such as to repel all effort for its improvement. Here the law must step in, and secure the community against the dangers to which the existence of such individuals exposes it. There is a certain element in the population which wishes to live, and is determined to live, on a level altogether below anything that can be called civilization. Those who compose it are nomadic and predatory in their habits, and occasionally give way to acts of fearful criminality. It is foolish not to recognize the fact, and take the measures that may be necessary for the isolation of this element. To devise and execute such measures is a burden a thousand times better worth taking up than the burden of imposing our yoke upon the Philippine Islands and crushing out a movement toward liberty quite as respectable, to all outward appearance, as that to which we have reared monuments at Bunker Hill and elsewhere. The fact is, the work before us at home is immense; and it is work which we might attack, not only without qualms of conscience, but with the conviction that every unit of labor devoted to it was being directed toward the highest interests not of the present generation only, but of generations yet unborn. The "white man," we trust, will some day see it; but meanwhile valuable time is being lost, and the national conscience is being lowered by the assumption of burdens that are not ours, whatever Mr. Kipling may have said or sung, or whatever Governor Roosevelt may assert on his word as a soldier.

SPECIALIZATION.

That division of labor is as necessary in the pursuit of science as in the world of industry no one would think of disputing; but that, like division of labor elsewhere, it has its drawbacks and dangers is equally obvious. When the latter truth is insisted on by those who are not recognized as experts, the experts are apt to be somewhat contemptuous in resenting such interference, as they consider it. An expert himself has, however, taken up the parable, and his words merit attention. We refer to an address delivered by Prof. J. Arthur Thompson, at the University of Aberdeen, upon entering on his duties as Regius Professor of Natural History, a post to which he was lately appointed. "We need to be reminded," he said, "amid the undoubted and surely legitimate fascinations of dissection and osteology, of section cutting and histology, of physiological chemistry and physiological physics, of embryology and fossil hunting, and the like, that the chief end of our study is a better understanding of living creatures in their natural surroundings." He could see no reason, he went on to say, for adding aimlessly to the overwhelming mass of detail already accumulated in these and other fields of research. The aim of our efforts should rather be to grasp the chief laws of growth and structure, and to rise to a true conception of the meaning of organization.

The tendency to over-specialization is manifest everywhere; it may be traced in physics and chemistry, in mathematics, in archæology, and in philology, as well as in biology. We can not help thinking that there is a certain narcotic influence arising from the steady accumulation of minute facts, so that what was in the first place, and in its early stages, an invigorating pursuit becomes not only an absorbing, but more or less a benumbing passion. We are accustomed to profess great admiration for Browning's Grammarian, who—

"Gave us the doctrine of the enclitic De Dead from the waist down,"

but really we don't feel quite sure that the cause for which the old gentleman struggled was quite worthy of such desperate heroism. The world could have got along fairly well for a while with an imperfect knowledge of the subtle ways of the "enclitic De," and indeed a large portion of the world has neither concerned itself with the subject nor felt the worse for not having done so.

What we fear is that some people are "dead from the waist down," or even from higher up, without being aware of it, and all on account of a furious passion for "enclitic de's" or their equivalent in other lines of study. Gentlemen, it is not worth while! You can not all hope to be buried on mountain tops like the grammarian, for there are not peaks enough for all of you, and any way what good would it do you? There is need of specialization, of course; we began by saying that the drift of our remarks is simply this, that he who would go into minute specializing should be careful to lay in at the outset a good stock of common sense, a liberal dose (if he can get it) of humor, and quantum suff. of humanity. Thus provided he can go ahead.

Scientific Literature.

SPECIAL BOOKS.

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.

GENERAL NOTICES.

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.

A book describing the Practical Methods of identifying Minerals in Rock Sections with the Microscope[17] has been prepared by Mr. L. McI. Luquer to ease the path of the student inexperienced in optical mineralogy by putting before him only those facts which are absolutely necessary for the proper recognition and identification of the minerals in thin sections. The microscopic and optical characters of the minerals are recorded in the order in which they would be observed with a petrographical microscope; when the sections are opaque, attention is called to the fact, and the characters are recorded as seen with incident light. The order of Rosenbusch, which is based on the symmetry of the crystalline form, is followed, with a few exceptions made for convenience. In an introductory chapter a practical elementary knowledge of optics as applied to optical mineralogy is attempted to be given, without going into an elaborate discussion of the subject. The petrographical microscope is described in detail. The application of it to the investigation of mineral characteristics is set forth in general and as to particular minerals. The preparation of sections and practical operations are described, and an optical scheme is appended, with the minerals grouped according to their common optical characters.

Mr. Herbert C. Whitaker's Elements of Trigonometry[18] is concise and of very convenient size for use. The introduction and the first five of the seven chapters have been prepared for the use of beginners. The other two chapters concern the properties of triangles and spherical triangles; an appendix presents the theory of logarithms; and a second appendix, treating of goniometry, complex quantities, and complex functions, has been added for students intending to take up work in higher departments of mathematics. For assisting a clearer understanding of the several processes, the author has sought to associate closely with every equation a definite meaning with reference to a diagram. Other characteristics of the book are the practical applications to mechanics, surveying, and other everyday problems; its many references to astronomical problems, and the constant use of geometry as a starting point and standard.

A model in suggestions for elementary teaching is offered in California Plants in their Homes,[19] by Alice Merritt Davidson, formerly of the State Normal School, California. The book consists of two parts, a botanical reader for children and a supplement for the use of teachers, both divisions being also published in separate volumes. It is well illustrated, provided with an index and an outline of lessons adapted to different grades. The treatment of each theme is fresh, and the grouping novel, as is indicated by the chapter headings: Some Plants that lead Easy Lives, Plants that know how to meet Hard Times, Plants that do not make their own Living, Plants with Mechanical Genius. Although specially designed for the study of the flora of southern California, embodying the results of ten years' observation by the author, it may be recommended to science teachers in any locality as an excellent guide. The pupil in this vicinity will have to forego personal inspection of the shooting-star and mariposa lily, while he finds the century plant, yuccas, and cacti domiciled in the greenhouse. In addition to these, however, attention is directed to a sufficient number of familiar flowers, trees, ferns, and fungi for profitable study, and the young novice in botany can scarcely make a better beginning than in company with this skillful instructor.

Prof. John M. Coulter's Plant Relations[20] is one of two parts of a system of teaching botany proposed by the author. Each of the two books is to represent the work of half a year, but each is to be independent of the other, and they may be used in either order. The two books relate respectively, as a whole, to ecology, or the life relations of surroundings of plants, and to their morphology. The present volume concerns the ecology. While it may be to the disadvantage of presenting ecology first, that it conveys no knowledge of plant structures and plant groups, this disadvantage is compensated for, in the author's view, by the facts that the study of the most evident life relations gives a proper conception of the place of plants in Nature; that it offers a view of the plant kingdom of the most permanent value to those who can give but a half year to botany; and that it demands little or no use of the compound microscope, an instrument ill adapted to first contacts with Nature. The book is intended to present a connected, readable account of some of the fundamental facts of botany, and also to serve as a supplement to the three far more important factors of the teacher, who must amplify and suggest at every point; the laboratory, which must bring the pupil face to face with plants and their structure; and field work, which must relate the facts observed in the laboratory to their actual place in Nature, and must bring new facts to notice which can be observed nowhere else. Taking the results obtained from these three factors, the book seeks to organize them, and to suggest explanations, through a clear, untechnical, compact text and appropriate and excellent illustrations.

The title of The Wilderness of Worlds[21] was suggested to the author by the contemplation of a wilderness of trees, in which those near him are very large, while in the distance they seem successively smaller, and gradually fade away till the limit of vision is reached. So of the wilderness of worlds in space, with its innumerable stars of gradually diminishing degrees of visibility—worlds "of all ages like the trees, and the great deep of space is covered with their dust, and pulsating with the potency of new births." The body of the book is a review of the history of the universe and all that is of it, in the light of the theory of evolution, beginning with the entities of space, time, matter, force, and motion, and the processes of development from the nebulæ as they are indicated by the most recent and best verified researches, and terminating with the ultimate extinction of life and the end of the planet. In the chapter entitled A Vision of Peace the author confronts religion and science. He regards the whole subject from the freethinker's point of view, with a denial of all agency of the supernatural.

In a volume entitled The Living Organism[22] Mr. Alfred Earl has endeavored to make a philosophical introduction to the study of biology. The closing paragraph of his preface is of interest as showing his views regarding vitalism: "The object of the book will be attained if it succeeds, although it may be chiefly by negative criticism, in directing attention to the important truth that, though chemical and physical changes enter largely into the composition of vital activity, there is much in the living organism that is outside the range of these operations." The first three chapters discuss general conceptions, and are chiefly psychology. A discussion of the structures accessory to alimentation in man and the higher animals occupies Chapters IV and V. The Object of Classification, Certain General Statements concerning Organisms, A Description of the Organism as related to its Surroundings, The Material Basis of Life, The Organism as a Chemical Aggregate and as a Center for the Transformation of Energy, Certain Aspects of Form and Development, The Meaning of Sensation, and, finally, Some of the Problems presented by the Organism, are the remaining chapter headings. The volume contains many interesting suggestions, and might perhaps most appropriately be described as a Theoretical Biology.

"Stars and Telescopes,"[23] Professor Todd says, "is intended to meet an American demand for a plain, unrhetorical statement of the astronomy of to-day." We might state the purpose to be to bring astronomy and all that pertains to it up to date. It is hard to do this, for the author has been obliged to put what was then the latest discovery, made while the book was going through the press, in a footnote at the end of the preface. The information embodied in the volume is comprehensive, and is conveyed in a very intelligible style. The treatise begins with a running commentary or historical outline of astronomical discovery, with a rigid exclusion of all detail. The account of the earth and moon is followed by chapters on the Calendar and the Astronomical Relations of Light. The other members of the solar system are described and their relations reviewed, and then the comets and the stars. Closely associated with these subjects are the men who have contributed to knowledge respecting them, and consequently the names of the great discoverers and others who have helped in the advancement of astronomy are introduced in immediate connection with their work, in brief sketches and often with their portraits. Much importance is attributed by Professor Todd to the instruments with which astronomical discovery is carried on, and the book may be said to culminate in an account of the famous instruments, their construction, mounting, and use. The devisers of these instruments are entitled to more credit than the unthinking are always inclined to give them, for the value of an observation depends on the accuracy of the instrument as well as on the skill of the observer, and the skill which makes the instrument accurate is not to be underrated. So the makers of the instruments are given their place. Then the recent and improved processes have to be considered, and, altogether, Professor Todd has found material for a full and somewhat novel book, and has used it to good advantage.

Some Observations on the Fundamental Principles of Nature is the title of an essay by Henry Witt, which, though very brief, takes the world of matter, mind, and society within its scope. One of the features of the treatment is that instead of the present theory of an order of things resulting from the condensation of more rarefied matter, one of the organization of converging waves of infinitesimal atoms filling all space is substituted. With this point prominently in view, the various factors and properties of the material universe—biology, psychology, sociology, ethics, and the future—are treated of.

Among the later monographs published by the Field Columbian Museum, Chicago, is a paper in the Geological Series (No. 3) on The Ores of Colombia, from Mines in Operation in 1892, by H. W. Nichols. It describes the collection prepared for the Columbian Exposition by F. Pereira Gamba and afterward given to the museum—a collection which merits attention for the light it throws upon the nature and mode of occurrence of the ores of one of the most important gold-producing countries of the world, and also because it approaches more nearly than is usual the ideal of what a collection in economic geology should be. Other publications in the museum's Geological Series are The Mylagauldæ, an Extinct Family of Sciuromorph Rodents (No. 4), by E. S. Riggs, describing some squirrel-like animals from the Deep River beds, near White Sulphur Springs, Montana; A Fossil Egg from South Dakota (No. 5), by O. C. Farrington, relative to the egg of an anatine bird from the early Miocene; and Contributions to the Paleontology of the Upper Cretaceous Series (No. 6), by W. N. Logan, in which seven species of Scaphites, Ostrea, Gasteropoda, and corals are described. In the Zoölogical Series, Preliminary Descriptions of New Rodents from the Olympic Mountains (of Washington) (No. 11), by D. G. Elliot, relates to six species; Notes on a Collection of Cold-blooded Vertebrates from the Olympic Mountains (No. 12), by S. E. Meek, to six trout and three other fish, four amphibia, and three reptiles; and a Catalogue of Mammals from the Olympic Mountains, Washington, with descriptions of new species (No. 13), by D. G. Elliot, includes a number of species of rodents, lynx, bear, and deer.

Some Notes on Chemical Jurisprudence is the title given by Harwood Huntington (260 West Broadway, New York; 25 cents) to a brief digest of patent-law cases involving chemistry. The notes are designed to be of use to chemists intending to take out patents by presenting some of the difficulties attendant upon drawing up a patent strong enough to stand a lawsuit, and by explaining some points of law bearing on the subject. In most, if not all, cases where the chemist has devised a new method or application it is best, the author holds, to take out a patent for self-protection, else the inventor may find his device stolen from him and patented against him.

A cave or fissure in the Cambrian limestone of Port Kennedy, Montgomery County, Pa., exposed by quarrymen the year before, was brought to the knowledge of geologists by Mr. Charles M. Wheatley in 1871, when the fossils obtained from it were determined by Prof. E. D. Cope as of thirty-four species. Attention was again called to the paleontological interest of the locality by President Dixon, of the Academy of Natural Sciences of Philadelphia, in 1894. The fissure was examined again by Dr. Dixon and others, and was more thoroughly explored by Mr. Henry C. Mercer. Mr. Mercer published a preliminary account of the work, which was followed by the successive studies of the material by Professor Cope preliminary to a complete and illustrated report to be made after a full investigation of all accessible material. Professor Cope did not live to publish this full report, which was his last work, prepared during the suffering of his final illness. It is now published, just as the author left it, as Vertebrate Remains from the Port Kennedy Deposit, from the Journal of the Academy of Natural Sciences of Philadelphia. Four plates of illustrations, photographed from the remains, accompany the text.

The machinery of Mr. Fred A. Lucas's story of The Hermit Naturalist reminds us of that of the old classical French romances, like Télémaque, and the somewhat artificial, formal diction is not dissimilar. An accident brings the author into acquaintance and eventual intimacy with an old Sicilian naturalist, who, migrating to this country, has established a home, away from the world's life, on an island in the Delaware River. The two find a congenial subject of conversation in themes of natural history, and the bulk of the book is in effect a running discourse by the old Sicilian on snakes and their habits—a valuable and interesting lesson. The hermit has a romance, involving the loss of his motherless daughter, stolen by brigands and brought to America, his long search for her and resignation of hope, and her ultimate discovery and restoration to him. The book is of easy reading, both as to its natural history and the romance.

We have two papers before us on the question of expansion. One is an address delivered by John Barrett, late United States Minister to Siam, before the Shanghai General Chamber of Commerce, and previous to the beginning of the attempt to subjugate the islands, on The Philippine Islands and American Interests in the Far East. This address has, we believe, been since followed by others, and in all Mr. Barrett favors the acquisition of the Philippine Islands on the grounds, among others, of commercial interests and the capacity of the Filipinos for development in further civilization and self-government; but his arguments, in the present aspect of the Philippine question, seem to us to bear quite as decidedly in the opposite direction. He gives the following picture of Aguinaldo and the Filipino government: "He (Aguinaldo) captured all Spanish garrisons on the island of Luzon outside of Manila, so that when the Americans were ready to proceed against the city they were not delayed and troubled with a country campaign. Moreover, he has organized a government which has practically been administering the affairs of the great island since the American occupation of Manila, and which is certainly better than the former administration; he has a properly formed Cabinet and Congress, the members of which, in appearance and manners, would compare favorably with Japanese statesmen. He has among his advisers men of ability as international lawyers, while his supporters include most of the prominent educated and wealthy natives, all of which prove possibilities of self-government that we must consider." This pamphlet is published at Hong Kong. The other paper is an address delivered before the New York State Bar Association, by Charles A. Gardiner, on Our Right to acquire and hold Foreign Territory, and is published by G. P. Putnam's Sons in the Questions of the Day Series. Mr. Gardiner holds and expresses the broadest views of the constitutional power of our Government to commit the acts named, and to exercise all the attributes incidental to the possession of acquired territory, but he thinks that we need a great deal of legal advice in the matter.

A pamphlet, Anti-Imperialism, by Morrison L. Swift, published by the Public Ownership Review, Los Angeles, Cal., covers the subject of English and American aggression in three chapters—Imperialism to bless the Conquered, Imperialism for the Sake of Mankind, and Our Crime in the Philippines. Mr. Swift is very earnest in respect to some of the subjects touched upon in his essays, and some persons may object that he is more forcible—even to excess—than polite in his denunciations. To such he may perhaps reply that there are things which language does not afford words too strong to characterize fitly.

Among the papers read at the Fourth International Catholic Scientific Congress, held at Fribourg, Switzerland, in August, 1897, was one by William J. D. Croke on Architecture, Painting, and Printing at Subiaco as represented in the Abbey at Subiaco. The author regards the features of the three arts represented in this place as evidence that the record of the activity of the foundation constitutes a real chapter in the history of progress in general and of culture in particular.

PUBLICATIONS RECEIVED.

Benson, E. F. Mammon & Co. New York: D. Appleton and Company. Pp. 360. $1.50.

Buckley, James A. Extemporaneous Oratory. For Professional and Amateur Speakers. New York: Eaton & Mains. Pp. 480. $1.50.

Canada, Dominion of, Experimental Farms: Reports for 1897. Pp. 449; Reports for 1898. Pp. 429.

Conn, H. W. The Story of Germ Life. (Library of Useful Stories.) New York: D. Appleton and Company. Pp. 199. 40 cents.

Dana, Edward S. First Appendix to the Sixth Edition of Dana's Mineralogy. New York: John Wiley & Sons. Pp. 75. $1.

Franklin Institute, The Drawing School, also School of Elementary Mathematics: Announcements. Pp. 4 each.

Ganong, William F. The Teaching Botanist. New York: The Macmillan Company. Pp. 270. $1.10.

Getman, F. H. The Elements of Blowpipe Analysis. New York: The Macmillan Company. Pp. 77. 60 cents.

Halliday, H. M. An Essay on the Common Origin of Light, Heat, and Electricity. Washington, D. C. Pp. 46.

Hardin, Willett L. The Rise and Development of the Liquefaction of Gases. New York: The Macmillan Company. Pp. 250. $1.10.

Hillegas, Howard C. Oom Paul's People. A Narrative of the British-Boer Troubles in South Africa, with a History of the Boers, the Country, and its Institutions. New York: D. Appleton and Company. Pp. 308. $1.50.

Ireland, Alleyne. Tropical Colonization. An Introduction to the Study of the Subject. New York: The Macmillan Company. $2.

Kingsley, J. S. Text-Book of Elementary Zoölogy. New York: Henry Holt & Co. Pp. 439.

Knerr, E. B. Relativity in Science. Silico-Barite Nodules from near Salina. Concretions. (Transactions of the Kansas Academy of Science.) Pp. 24.

Krõmskõp Color Photography. Philadelphia: Ives Krõmskõp. Pp. 24.

Liquid-Air Power and Automobile Company. Prospectus. Pp. 16.

MacBride, Thomas A. The North American Slime Molds. Being a List of Species of Myxomycetes hitherto described from North America, Including Central America. New York: The Macmillan Company. Pp. 231, with 18 plates. $2.25.

Meyer, A. B. The Distribution of the Negritos in the Philippine Islands and Elsewhere. Dresden (Saxony): Stengel & Co. Pp. 92.

Nicholson, H. H., and Avery, Samuel. Laboratory Exercises with Outlines for the Study of Chemistry, to accompany any Elementary Text. New York: Henry Holt & Co. Pp. 134. 60 cents.

Scharff, R. P. The History of the European Fauna. New York: Imported by Charles Scribner's Sons. Pp. 354. $1.50.

Schleicher, Charles, and Schull, Duren. Rhenish Prussia. Samples of Special Filtering Papers. New York: Eimer & Amend, agents.

Sharpe, Benjamin F. An Advance in Measuring and Photographing Sounds. United States Weather Bureau. Pp. 18, with plates.

Shinn, Milicent W. Notes on the Development of a Child. Parts III and IV. (University of California Studies.) Pp. 224.

Shoemaker, M. M. Quaint Corners of Ancient Empires, Southern India, Burmah, and Manila. New York: G. P. Putnam's Sons. Pp. 212.

Smith, Orlando J. A Short View of Great Questions. New York: The Brandur Company, 220 Broadway. Pp. 75.

Smith, Walter. Methods of Knowledge. An Essay in Epistemology. New York: The Macmillan Company. Pp. 340. $1.25.

Southern, The, Magazine. Monthly. Vol. I, No. 1. August, 1899. Pp. 203. 10 cents. $1 a year.

Suter, William N. Handbook of Optics. New York: The Macmillan Company. Pp. 209. $1.

Tarde, G. Social Laws. An Outline of Sociology. With a Preface by James Mark Baldwin. New York: The Macmillan Company. Pp. 213. $1.25.

Uline, Edwin B. Higinbothamia. A New Genus, and other New Dioscoreaceæ, New Amaranthaceæ. (Field Columbian Museum, Chicago Botanical Series.) Pp. 12.

Underwood, Lucien M. Molds, Mildews, and Mushrooms. New York: Henry Holt & Co. Pp. 227, with 9 plates. $1.50.

United States Civil-Service Commission. Fifteenth Report, July 1, 1897, to June 30, 1898. Pp. 736. Washington.

Fragments of Science.

The Dover Meeting of the British Association.—While the attendance on the meeting of the British Association at Dover was not large—the whole number of members being 1,403, of whom 127 were ladies—the occasion was in other respects eventful and one of marked interest. The papers read were, as a rule, of excellent quality, and the interchange of visits with the French Association was a novel feature that might bear many repetitions. The president, Sir Michael Foster, presented, in his inaugural address, a picture of the state of science one hundred years ago, illustrating it by portraying the conditions to which a body like the association meeting then at Dover would have found itself subject, and suggesting the topics it would have discussed. The period referred to was, however, that of the beginning of the present progress, and, after remarking on what had been accomplished in the interval, the speaker drew a very hopeful foreview for the future. Besides the intellectual triumphs of science, its strengthening discipline, its relation to politics, and the "international brotherhood of science" were brought under notice in the address. In his address as president of the Physical Section, Prof. J. H. Poynting showed how physicists are tending toward a general agreement as to the nature of the laws in which they embody their discoveries, of the explanations they give, and of the hypotheses they make, and, having considered what the form and terms of this agreement should be, passed to a discussion of the limitations of physical science. The subject of Dr. Horace T. Brown's Chemical Section address was The Assimilation of Carbon by the Higher Plants. Sir William H. White, president of the Section of Mechanical Science, spoke on Steam Navigation at High Speeds. President Adam Sedgwick addressed the Zoölogical Section on Variation and some Phenomena connected with Reproduction and Sex; Sir John Murray, the Geographical Section on The Ocean Floor; and Mr. J. N. Langley, the Physiological Section on the general relations of the motor nerves to the several tissues of the body, especially of those which run to tissues over which we have little or no control. The president of the Anthropological Section, Mr. C. H. Read, of the British Museum, spoke of the preservation and proper exploration of the prehistoric antiquities of the country, and offered a plan for increasing the amount of work done in anthropological investigation by the use of Government aid. A peculiar distinction attaches to this meeting through its reception and entertainment of the French Association, and the subsequent return of the courtesy by the latter body at Boulogne. About three hundred of the French Associationists, among whom were many ladies, came over, on the Saturday of the meeting, under the lead of their president, M. Brouardel, and accompanied by a number of men of science from Belgium. They were met at the pier by the officers of the British Association, and were escorted to the place of meeting and to the sectional meetings toward which their several tastes directed them. The geological address of Sir Archibald Geikie on Geological Time had been appointed for this day out of courtesy to the French geologists, and in order that they might have an opportunity of hearing one of the great lights of British science. Among the listeners who sat upon the platform were M. Gosselet, president of the French Geological Society; M. Kemna, president of the Belgian Geological Society; and M. Rénard, of Ghent. Public evening lectures were delivered on the Centenary of the Electric Current, by Prof. J. A. Fleming, and (in French) on Nervous Vibration, by Prof. Charles Richet. Sir William Turner was appointed president for the Bradford meeting of the association (1900). The visit of the French Association was returned on September 22d, when the president, officers, and about three hundred members went to Boulogne. They were welcomed by the mayor of the city, the prefect of the department, and a representative of the French Government; were feasted by the municipality of Boulogne; were entertained by the members of the French Association; and special commemorative medals were presented by the French Association to the two presidents. The British visitors also witnessed the inauguration of a tablet in memory of Dr. Duchesne, and of a plaque commemorative of Thomas Campbell, the poet, who died in Boulogne.

Artificial India Rubber.—A recent issue of the Kew Gardens Bulletin contains an interesting article on Dr. Tilden's artificial production of India rubber. India rubber, or caoutchouc, is chemically a hydrocarbon, but its molecular constitution is unknown. When decomposed by heat it is broken up into simpler hydrocarbons, among which is a substance called isoprene, a volatile liquid boiling at about 36° C. Its molecular formula is C₅H₈. Dr. Tilden obtained this same substance (isoprene) from oil of turpentine and other terpenes by the action of moderate heat, and then by treating the isoprene with strong acids succeeded, by means of a very slow reaction, in converting a small portion of it into a tough elastic solid, which seems to be identical in properties with true India rubber. This artificial rubber, like the natural, seems to consist of two substances, one of which is more soluble in benzene and carbon bisulphide than the other. It unites with sulphur in the same way as ordinary rubber, forming a tough, elastic compound. In a recent letter Professor Tilden says: "As you may imagine, I have tried everything I can think of as likely to promote this change, but without success. The polymerization proceeds very slowly, occupying, according to my experience, several years, and all attempts to hurry it result in the production not of rubber, but of 'colophene,' a thick, sticky oil quite useless for all purposes to which rubber is applied."

Dangers of High Altitudes for Elderly People.—"The public, and sometimes the inexperienced physician—inexperienced not in general therapeutics but in the physiological effects of altitude on a weak heart," says Dr. Findlater Zangger in the Lancet, "make light of a danger they can not understand. But if an altitude of from four thousand to five thousand feet above the sea level puts a certain amount of strain on a normal heart and by a rise of the blood-pressure indirectly also on the small peripheral arteries, must not this action be multiplied in the case of a heart suffering from even an early stage of myocarditis or in the case of arteries with thickened or even calcified walls? It is especially the rapidity of the change from one altitude to another, with differences of from three thousand to four thousand feet, which must be considered. There is a call made on the contractibility of the small arteries on the one hand, and on the amount of muscular force of the heart on the other hand, and if the structures in question can not respond to this call, rupture of an artery or dilatation of the heart may ensue. In the case of a normal condition of the circulatory organs little harm is done beyond some transient discomfort, such as dizziness, buzzing in the ears, palpitation, general malaise, and this often only in the case of people totally unaccustomed to high altitudes. For such it is desirable to take the high altitude by degrees in two or three stages, say first stage 1,500 feet, second stage from 2,500 to 3,000 feet, and third stage from 4,000 to 6,000 feet, with a stay of one or two days at the intermediate places. The stay at the health resort will be shortened, it is true, but the patient will derive more benefit. On the return journey one short stay at one intermediate place will suffice. Even a fairly strong heart will not stand an overstrain in the first days spent at a high altitude. A Dutch lady, about forty years of age, who had spent a lifetime in the lowlands, came directly up to Adelboden (altitude, 4,600 feet). After two days she went on an excursion with a party up to an Alp 7,000 feet high, making the ascent quite slowly in four hours. Sudden heart syncope ensued, which lasted the best part of an hour, though I chanced to be near and could give assistance, which was urgently needed. The patient recovered, but derived no benefit from a fortnight's stay, and had to return to the low ground the worse for her trip and her inconsiderate enterprise. Rapid ascents to a high altitude are very injurious to patients with arterio-sclerosis, and the mountain railways up to seven thousand and ten thousand feet are positively dangerous to an unsuspecting public, for many persons between the ages of fifty-five and seventy years consider themselves to be hale and healthy, and are quite unconscious of having advanced arterio-sclerosis and perchance contracted kidney. An American gentleman, aged fifty-eight years, was under my care for slight symptoms of angina pectoris, pointing to sclerosis of the coronary arteries. A two-months' course of treatment at Zurich with massage, baths, and proper exercise and diet did away with all the symptoms. I saw him by chance some months later. 'My son is going to St. Moritz (six thousand feet) for the summer,' said he; 'may I go with him?' 'Most certainly not,' was my answer. The patient then consulted a professor, who allowed him to go. Circumstances, however, took him for the summer to Sachseln, which is situated at an altitude of only two thousand feet, and he spent a good summer. But he must needs go up the Pilatus by rail (seven thousand feet), relying on the professor's permission, and the result was disastrous, for he almost died from a violent attack of angina pectoris on the night of his return from the Pilatus, and vowed on his return to Zurich to keep under three thousand feet in future. I may here mention that bad results in the shape of heart collapse, angina pectoris, cardiac asthma, and last, not least, apoplexy, often occur only on the return to the lowlands."

The Parliamentary Amenities Committee.—Under the above rather misleading title there was formed last year, in the English Parliament, a committee for the purpose of promoting concerted action in the preservation and protection of landmarks of general public interest, historic buildings, famous battlefields, and portions of landscape of unusual scenic beauty or geological conformation, and also for the protection from entire extinction of the various animals and even plants which the spread of civilization is gradually pushing to the wall. In reality, it is an official society for the preservation of those things among the works of past man and Nature which, owing to their lack of direct money value, are in danger of destruction in this intensely commercial age. Despite the comparative newness of the American civilization, there are already many relics belonging to the history of our republic whose preservation is very desirable, as well as very doubtful, if some such public-spirited committee does not take the matter in hand; and, as regards the remains of the original Americans, in which the country abounds, the necessity is still more immediate. The official care of Nature's own curiosities is equally needed, as witness the way in which the Hudson River palisades are being mutilated, and the constant raids upon our city parks for speedways, parade grounds, etc. The great value of a parliamentary or congressional committee of this sort lies in the fact that its opinions are not only based upon expert knowledge, but that they can be to an extent enforced; whereas such a body of men with no official position may go on making suggestions and protesting, as have numerous such bodies for years, without producing any practical results. The matter is, with us perhaps, one of more importance to future generations; but as all Nature seems ordered primarily with reference to the future welfare of the race, rather than for the comfort of its present members, the necessity for such an official body, whose specific business should be to look after the preservation of objects of historical interest to the succeeding centuries, ought to be inculcated in us as a part of the general evolutionary scheme.

Physical Measurements of Asylum Children.—Dr. Ales Hrdlicka has published an account of anthropological investigations and measurements which he has made upon one thousand white and colored children in the New York Juvenile Asylum and one hundred colored children in the Colored Orphan Asylum, for information about the physical state of the children who are admitted and kept in juvenile asylums, and particularly to learn whether there is anything physically abnormal about them. Some abnormality in the social or moral condition of such children being assumed, if they are also physically inferior to other children, they would have to be considered generally handicapped in the struggle for life; but if they do not differ greatly in strength and constitution from the average ordinary children, then their state would be much more hopeful. Among general facts concerning the condition of the children in the Juvenile Asylum, Dr. Hrdlicka learned that when admitted to the institution they are almost always in some way morally and physically inferior to healthy children from good social classes at large—the result, usually, of neglect or improper nutrition or both. Within a month, or even a week, decided changes for the better are observed, and after their admission the individuals of the same sex and age seem gradually, while preserving the fundamental differences of their nature, to show less of their former diversity and grow more alike. In learning, the newcomers are more or less retarded when put into the school, but in a great majority of cases they begin to acquire rapidly, and the child usually reaches the average standing of the class. Inveterate backwardness in learning is rare. Physically, about one seventh of all the inmates of the asylum were without a blemish on their bodies—a proportion which will not seem small to persons well versed in analyses of the kind. The differences in the physical standing of the boys and the girls were not so great or so general as to permit building a hypothesis upon them, though the girls came out a little the better. The colored boys seemed to be physically somewhat inferior to the white ones, but the number of them was not large enough to justify a conclusion. Of the children not found perfect, two hundred presented only a single abnormality, and this usually so small as hardly to justify excluding them from the class of perfect. Regarding as decidedly abnormal only those in whom one half the parts of the body showed defects, the number was eighty-seven. "Should we, for the sake of illustration, express the physical condition of the children by such terms as fine, medium, and bad, the fine and bad would embrace in all 192 individuals, while 808 would remain as medium." All the classes of abnormalities—congenital, pathological, and acquired—seemed more numerous in the boys than in the girls. The colored children showed fewer inborn abnormalities than the white, but more pathological and acquired. No child was found who could be termed a thorough physical degenerate, and the author concludes that the majority of the class of children dealt with are physically fairly average individuals.

Busy Birds.—A close observation of a day's work of busy activity, of a day's work of the chipping sparrow hunting and catching insects to feed its young, is recorded by Clarence M. Weed in a Bulletin of the New Hampshire College Agricultural Experiment Station. Mr. Weed began his watch before full daylight in the morning, ten minutes before the bird got off from its nest, and continued it till after dark. During the busy day Mr. Weed says, in his summary, the parent birds made almost two hundred visits to the nest, bringing food nearly every time, though some of the trips seem to have been made to furnish grit for the grinding of the food. There was no long interval when they were not at work, the longest period between visits being twenty-seven minutes. Soft-bodied caterpillars were the most abundant elements of the food, but crickets and crane flies were also seen, and doubtless a great variety of insects were taken, but precise determination of the quality of most of the food brought was of course impossible. The observations were undertaken especially to learn the regularity of the feeding habits of the adult birds. The chipping sparrow is one of the most abundant and familiar of our birds. It seeks its nesting site in the vicinity of houses, and spends most of its time searching for insects in grass lands or cultivated fields and gardens. In New England two broods are usually reared each season. That the young keep the parents busy catching insects and related creatures for their food is shown by the minute record which the author publishes in his paper. The bird deserves all the protection and encouragement that can be given it.

Park-making among the Sand Dunes.—For the creation of Golden Gate Park the park-makers of San Francisco had a series of sand hills, "hills on hills, all of sand-dune formation." The city obtained a strip of land lying between the bay and the ocean, yet close enough to the center of population to be cheaply and easily reached from all parts of the town. Work was begun in 1869, and has been prosecuted steadily since, with increasing appropriations, and the results are a credit to the city, Golden Gate Park, Mr. Frank H. Lamb says in his account of it in The Forester, having a charm that distinguishes it from other city parks. It has a present area of 1,040 acres, of which 300 acres have been sufficiently reclaimed to be planted with coniferous trees." It is this portion of the park which the visitor sees as one of the sights of the Golden Gate." As he rides through the park out toward the Cliff House and Sutro Heights by the Sea," he sees still great stretches of sand, some loose, some still held in place by the long stems and rhizomes of the sand grass (Arundo arenaria). This is the preparatory stage in park-making. The method in brief is as follows: The shifting sand is seeded with Arundo arenaria, and this is allowed to grow two years, when the ground is sufficiently held in place to begin the second stage of reclamation, which consists in planting arboreal species, generally the Monterey pine (Pinus insignis) and the Monterey cypress (Cupressus macrocarpus); with these are also planted the smaller Leptospermum lævigatum and Acacia latifolia. These species in two or more years complete the reclamation, and then attention is directed to making up all losses of plants and encouraging growth as much as possible." The entire cost of reclamation by these methods is represented not to average more than fifty dollars per acre.

A Fossiliferous Formation below the Cambrian.—Mr. George F. Matthew said, in a communication to the New York Academy of Sciences, that he had been aware for several years of the existence of fauna in the rocks below those containing Paradoxides and Protolenus in New Brunswick, eastern Canada, but that the remains of the higher types of organisms found in those rocks were so poorly preserved and fragmentary that they gave a very imperfect knowledge of their nature. Only the casts of Hyolithidæ, the mold of an obolus, a ribbed shell, and parts of what appeared to be the arms and bodies of crinoids were known, to assure us that there had been living forms in the seas of that early time other than Protozoa and burrowing worms. These objects were found in the upper division of a series of rocks immediately subjacent to the Cambrian strata containing Protolenus, etc. As a decided physical break was discovered between the strata containing them and those having Protolenus, the underlying series was thought worthy of a distinctive name, and was called Etchemenian, after a tribe of aborigines that once inhabited the region. In most countries the basement of the Paleozoic sediments seems almost devoid of organic remains. Only unsatisfactory results have followed the search for them in Europe, and America did not seem to promise a much better return. Nevertheless, the indications of a fauna obtained in the maritime provinces of Canada seemed to afford a hope that somewhere "these basement beds of the Paleozoic might yield remains in a better state of preservation." The author, therefore, in the summer of 1898, made a visit to a part of Newfoundland where a clear section of sediments had been found below the horizons of Paradoxides and Agraulos strenuus. These formations were examined at Manuel's Brook and Smith's Sound. In the beds defined as Etchemenian no trilobites were found, though other classes of animals, such as gastropods, brachiopods, and lamellibranchs, occur, with which trilobites elsewhere are usually associated in the Cambrian and later geological systems. The absence, or possibly the rarity of the trilobites appears to have special significance in view of their prominence among Cambrian fossils. The uniformity of conditions attending the depositions of the Etchemenian terrane throughout the Atlantic coast province of the Cambrian is spoken of as surprising and as pointing to a quiescent period of long continuance, during which the Hyolithidæ and Capulidæ developed so as to become the dominant types of the animal world, while the brachiopods, the lamellibranchs, and the other gastropods still were puny and insignificant. Mr. Matthew last year examined the red shales at Braintree, Mass., and was informed by Prof. W. O. Crosby that they included many of the types specified as characteristic of the Etchemenian fauna, and that no trilobites had with certainty been obtained from them. The conditions of their deposition closely resemble those of the Etchemenian of Newfoundland.

The Paris Exposition, 1900, and Congresses.—The grounds of the Paris Exposition of 1900 extend from the southwest angle of the Place de la Concorde along both banks of the Seine, nearly a mile and a half, to the Avenue de Suffren, which forms the western boundary of the Champ de Mars. The principal exhibition spaces are the Park of the Art palaces and the Esplanade des Invalides at the east, and the Champ de Mars and the Trocadéro at the west. Many entrances and exits will be provided, but the principal and most imposing one will be erected at the Place de la Concorde, in the form of a triumphal arch. Railways will be provided to bring visitors from the city to the grounds, and another railway will make their entire circuit. The total surface occupied by the exposition grounds is three hundred and thirty-six acres, while that of the exposition of 1889 was two hundred and forty acres. Another area has been secured in the Park of Vincennes for the exhibition of athletic games, sports, etc. The displays will be installed for the most part by groups instead of nations. The International Congress of Prehistoric Anthropology and Archæology will be held in connection with the exposition, August 20th to August 25th. The arrangements for it are under the charge of a committee that includes the masters and leading representatives of the science in France, of which M. le Dr. Verneau, 148 Rue Broca, Paris, is secretary general. A congress of persons interested in aërial navigation will be held in the Observatory of Meudon, the director of which, M. Janssen, is president of the Organizing Committee. Correspondence respecting this congress should be addressed to the secretary general, M. Triboulet, Director de Journal l'Aeronaute, 10 Rue de la Pepinière, Paris.

English Plant Names.—Common English and American names of plants are treated by Britton and Brown, in their Illustrated Flora of the Northern United States, Canada, and the British possessions, as full of interest from their origin, history, and significance. As observed in Britton and Holland's Dictionary, "they are derived from a variety of languages, often carrying us back to the early days of our country's history and to the various peoples who, as conquerors or colonists, have landed on our shores and left an impress on our language. Many of these Old-World words are full of poetical association, speaking to us of the thoughts and feelings of the Old-World people who invented them; others tell of the ancient mythology of our ancestors, of strange old mediæval usages, and of superstitions now almost forgotten." Most of these names, Britton and Brown continue in the preface to the third volume of their work, suggest their own explanation. "The greater number are either derived from the supposed uses, qualities, or properties of the plants; many refer to their habitat, appearance, or resemblance, real or fancied, to other things; others come from poetical suggestion, affection, or association with saints or persons. Many are very graphic, as the Western name prairie fire (Castillea coccinea); many are quaint or humorous, as cling rascal (Galium sparine) or wait-a-bit (Smilax rotundifolia); and in some the corruptions are amusing, as Aunt Jerichos (New England) for Angelica. The words horse, ox, dog, bull, snake, toad, are often used to denote size, coarseness, worthlessness, or aversion. Devil or devil's is used as a prefix for upward of forty of our plants, mostly expressive of dislike or of some traditional resemblance or association. A number of names have been contributed by the Indians, such as chinquapin, wicopy, pipsissewa, wankapin, etc., while the term Indian, evidently a favorite, is applied as a descriptive prefix to upward of eighty different plants." There should be no antagonism in the use of scientific and popular names, since their purposes are quite different. The scientific names are necessary to students for accuracy, "but the vernacular names are a part of the development of the language of each people. Though these names are sometimes indicative of specific characters and hence scientifically valuable, they are for the most part not at all scientific, but utilitarian, emotional, or picturesque. As such they are invaluable not for science, but for the common intelligence and the appreciation and enjoyment of the plant world."

Educated Colored Labor.—In a paper published in connection with the Proceedings of the Trustees of the John F. Slater Fund, Mr. Booker T. Washington describes his efforts, made at the suggestion of the trustees, to bring the work done at the Tuskegee school to the knowledge of the white people of the South, and their success. Mr. Carver, instructor in agriculture, went before the Alabama Legislature and gave an exhibition of his methods and results before the Committee on Agriculture. The displays of butter and other farm products proved so interesting that many members of the Legislature and other citizens inspected the exhibit, and all expressed their gratification. A full description of the work in agriculture was published in the Southern papers: "The result is that the white people are constantly applying to us for persons to take charge of farms, dairies, etc., and in many ways showing that their interest in our work is growing in proportion as they see the value of it." A visit made by the President of the United States gave an opportunity of assembling within the institution five members of the Cabinet with their families, the Governor of Alabama, both branches of the Alabama Legislature, and thousands of white and colored people from all parts of the South. "The occasion was most helpful in bringing together the two sections of our country and the two races. No people in any part of the world could have acted more generously and shown a deeper interest in this school than did the white people of Tuskegee and Macon County during the visit of the President."

Geology of Columbus, Ohio.—In his paper, read at the meeting of the American Association, on the geology of Ohio, Dr. Orton spoke of the construction of glacial drifts as found in central Ohio and the source of the material of the drift, showing that the bowlder clay is largely derived from the comminution of black slake, the remnants of which appear in North Columbus. He spoke also of the bowlders scattered over the surface of the region about Columbus, the parent rocks of which may be traced to the shores of the northern lakes, and of Jasper's conglomerate, picturesque fragments of which may be found throughout central Ohio. Some of these bowlders are known to have come from Lake Ontario. Bowlders of native copper also occur, one of which was found eight feet below the surface in excavations carried on for the foundations of the asylum west of the Scioto.

Civilized and Savage.—Professor Semon, in his book In the Australian Bush, characterizes the treatment of the natives by the settlers as constituting, on the whole, one of the darkest chapters in the colonization of Australia. "Everywhere and always we find the same process: the whites arrive and settle in the hunting grounds of the blacks, who have frequented them since the remotest time. They raise paddocks, which the blacks are forbidden to enter. They breed cattle, which the blacks are not allowed to approach. Then it happens that these stupid savages do not know how to distinguish between a marsupial and a placental animal, and spear a calf or a cow instead of a kangaroo, and the white man takes revenge for this misdeed by systematically killing all the blacks that come before his gun. This, again, the natives take amiss, and throw a spear into his back when he rides through the bush, or invade his house when he is absent, killing his family and servants. Then arrive the 'native police,' a troop of blacks from another district, headed by a white officer. They know the tricks of their race, and take a special pleasure in hunting down their own countrymen, and they avenge the farmer's dead by killing all the blacks in the neighborhood, sometimes also their women and children. This is the almost typical progress of colonization, and even though such things are abolished in the southeastern colonies and in southeast and central Queensland, they are by no means unheard of in the north and west."

MINOR PARAGRAPHS.

In a brood of five nestling sparrow-hawks, which he had the opportunity of studying alive and dead, Dr. R. W. Shufeldt remarked that the largest and therefore oldest bird was nearly double the size of the youngest or smallest one, while the three others were graduated down from the largest to the smallest in almost exact proportions." It was evident, then, that the female had laid the eggs at regular intervals, and very likely three or four days apart, and that incubation commenced immediately after the first egg was deposited. What is more worthy of note, however, is the fact that the sexes of these nestlings alternated, the oldest bird being a male, the next a female, followed by another male, and so on, the last or youngest one of all five being a male. This last had a plumage of pure white down, with the pin feathers of the primaries and secondaries of the wings, as well as the rectrices of the tail, just beginning to open at their extremities. From this stage gradual development of the plumage is exhibited throughout the series, the entire plumage of the males and females being very different and distinctive." If it be true, as is possibly indicated, that the sexes alternate in broods of young sparrow-hawks as a regular thing, the author has no explanation for the fact, and has never heard of any being offered.