t38 



SCIENCE. 



[Vol. XXII. No. 553 



Their "hootings" seem to be confined to no especial 

 season of the year, but can be heard almost any night, 

 and are quite noisy moonlight nights. 



As they grow older they consume less food, and are 

 not fed oftener than every other day. They are strong 

 and vigorous, and, as a proof of their muscular powers, 

 I once saw the female lift a dead turkey, which 

 weighed no less than eight pounds, bodily, from the 

 ground. 



Their sense of hearing is especially good ; the least 

 noise always attracts their attention. As for their eye- 

 sight, in broad daylight no birds could be better, as I 

 have frequently noticed them looking at birds, which 

 were flying over, at very great heights, on very clear 

 and bright days. 



They have never made any attempts to breed what- 

 ever, nor has either one shown any affection for the 

 other, although they seem to be on the best of terms, 

 except when eating the)^ occasionally have a scrimmage 

 over a piece of meat. Willard E. Treat. 



East Hartford, Conn. 



BOOK-REVIEWS. 



An Introduction to the Study of the Dependent, Defective and 

 Delinquent Classes. By Chables Eichmond Hendekson. 

 Boston: D. C. Health & Co. 12°, 272 p. $1.50. 

 The author of this book has been for more than twenty 

 years a student of the classes of which it treats, and has 

 been connected with many agencies for their improve- 

 ment and reformation. He has not only been a close ob- 

 server of those classes and of the methods that society has 

 adopted for dealing with .them, but is also widely read 

 in the literature of the subject; and his book shows that 

 he has read with discriminating judgment and to good 

 purpose. Mr. Henderson is assistant professor of social 

 science in the University of Chicago, and evidently had 

 his pupils in mind in preparing this book; for it is not 

 designed for those professionally engaged with the de- 

 pendent and criminal classes, but rather for the educated 

 citizen, who only wants a general knowledge of the sub- 

 iect. The book is divided into three parts, corresponding 



to the three classes of which it treats; and these parts are 

 again divided and sub-divided into chapters and sections; 

 the work of division and systematization being carried, as 

 it seems to us, to excess, since it gives the treatise too 

 formal a character without adding to its scientific value. 

 The author expresses himself jjlainly and with judicial 

 temper, and has no hobbies, scientific or practical, to 

 cloud his judgment. 



The jjart of the book relating to the defective classes, such 

 as the insane, the blind and others, is quite short, the 

 author evidently feeling that the treatment of those 

 classes is rather out of the range of social science. The 

 chapters concerning pauperism, its causes and remedies 

 are good; and though they contain nothing new or strik- 

 ing, they present the best views now prevalent and also 

 the methods now employed by the leading nations in their 

 treatment of the poor. But by much the larger portion of the 

 volume is devoted to the criminal classes, with special chap- 

 ters on the criminal type and on the causes of crime and 

 the best methods of dealing with it. Mr. Henderson, 

 though evidently familiar with the Italian writers and 

 others who regard crime as similar to disease and as large- 

 ly due to biological causes, does not share their views; but 

 maintains that the source of crime is in the moral nature, 

 and consequently that remedies and preventives must 

 be such as will have a moral effect. At the same time he 

 by no means overlooks the fact that criminals are of dif- 

 ferent kinds, and that in the case of some of them poverty 

 and other unfavorable circumstances have been con- 

 tributive causes of their crime. We commend the book 

 as a convenient introduction to the subject with which it 

 deals. 



Alternating Currents of Electricity: By Gisbert Kapp, C. E., 

 M. I. C. E., M. I. E. E., With an introduction by Wil- 

 liam Stanley, Jr. New York: W. J. Johnston Co. 

 Alteenating current work has been develojjed so recently 

 that there are a large number of electrical engineers in 

 the profession who finished their technical education before 

 the subject had attracted much attention. Of these a good- 

 ly number have since worked up the subject, among them 

 being some of the best-known specialists in that branch. 



JUST PUBLISHED. 



Imp. 8vo., Cloth, 430 pp. By Kegan Paul, 



Trench, Trubner & Co., London. 



Price, 3 IS. 6d. (less discount.) 



Comparative Philology of the Old and 

 New Worlds in its Eelation to 

 Archaic Speech. By R. P. Geeg., 

 Esq., F. S. A., F. G. S. 



With an introduction on Race and Languag'e, 

 giving: a resume of the opinions of many of the 

 principal writers on those subjects, accompanied 

 by copious vocabularies and numerous tables of 

 comparison for similar words and their cognate 

 forms as for most of the chief families of languages, 

 both ancient and modern, conveniently arranged 

 for purposes of comparison. 



An immense number of words are given, and 

 especially for Turanian (including Chinese, Acca 

 dian and Egyptian), as well as foi African and 

 American ones. 



The general results tend to show that there still 

 exists in most languages, whether dead or living". 

 certain element of what may be called an Archaic 

 Residuum, more or less common to all. 



You Ougilt lO Ktiaii 



The Popular Stiencr >iews and 



Boston JToiirnal of ClicEiasstry. 



Only one dollar fill July, 1SS4. 



A scientific newspaper for unscientiflc readers. 

 Address POPULAR SCIENCE NEWS CO., 



5 Somerset St., Boston, Mass. 



■^mmmmmmM: 



Sold by Druggists or sent by mall. 

 50c, E. T. Hazeltlne, Warren, Pa, 



.ASKTJSXi,, 

 -f^-WE;-MAKE THEM^. 



mmm 



BOOKS 



INSTBUl^ENTS. 



1893 Ca;.,ij;: e 



of Books on Uuiidii:? 

 Painting, and Deccna! ^1:1 

 I also Catalogue of Diav. 

 ing Instruments and 5Ia 

 terials, sent free on appl 

 cation to 



Wm. T. ComstoiU 



23 Warren St., New ".ork, 



RESTORE YOUR EYESIGHT 



-Cataracts, sears or fll'ms can be absorbed and 

 paralyzed nerves restored, -without tbe knife 

 or risk. Diseased eyes or lids can be cured by 

 oup home treatment. "We prove it." Hnn- 

 dreds conTinced. Our illustrated pamphlet, 



'TTnmft Trpatiripnt. fnr ■p.voc " f ran rirvT.'*- tyiVc^b <+ 



THE WINNIPEG COUNTRY; 



ROUGHING IT WITH AN ECLIPSE PARTY. 



A. ROCHESTER FELLOW. 



CS. H. SCUDDER.) 



With thirty- two Illustrations and a Map. 

 12*^. $1.50. 



"This is a spright-ly narrative of personal inci 

 dent. The book will be a pleasant reminder to 

 many of rough experiences on a frontier which is 

 rapidly receding."— Boston Transcript. 



" The picture of our desolate North-western terri- 

 tory twenty-five years ago, in contrast with its 

 civilized aspect to-day, and the pleasant features of 

 the writer's style, constitute the claims of his little 

 book to present attention." — The Dial. 



H. D. C. HODGES, 874 Broadway, N. Y. 



