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THE POPULAR SCIENCE MONTHLY. 



mologist of Illinois, On the Noxious and 

 Beneficial Insects of the State for 1889 and 

 1890, mentions as among the most note- 

 worthy events of the entomological record 

 the almost complete disappearance of the 

 worst outbreak known of the chinch-bug, the 

 very destructive development of the grain- 

 louse, and the appearance of the European 

 fruit-bark beetle, which is injurious to stone 

 fruits. Besides these insects the report con- 

 tains papers on experiments with arsenical 

 poisonings, the American plum-borer, the 

 common white grubs, the Hessian fly, the 

 corn-root aphis, and diseases of the larger 

 corn-root worm and the chiuch-bug. An ap- 

 pendix to the report comprises an analytical 

 list of the entomological writings of William 

 Le Barron, second State Entomologist of Illi- 

 nois. 



Good Roads is a new illustrated monthly 

 magazine devoted to the improvement of the 

 public roads and streets, edited by Isaac B. 

 Potter, and published by the League Roads 

 Improvement Bureau. Its general aim will 

 be to stimulate the interest of the public con- 

 cerning the advantages of good roads and 

 streets, and the best methods of constructing 

 and maintaining them ; and it is intended to 

 make the magazine of interest and value to 

 every person who travels the common roads. 

 It will give news of all events bearing on the 

 improvement of roads, and a series of articles 

 on leading subjects pertaining to it. The four 

 numbers of the journal before us conform to 

 the standard set up in announcing these pur- 

 poses. 



An account of The Fourth International 

 Prison Congress has been prepared by the 

 Hon. C. D. Randall, at the request of the 

 Commissioner of Education, at whose office 

 it is published, in Washington. Besides the 

 proceedings and addresses at the Congress 

 last held, a summary of the proceedings and 

 results of the three previous International 

 Congresses is presented. In the appendix 

 are further given an account of the enter- 

 tainments and excursions tendered to the 

 Congress, papers with reference to John 

 Howard, an abstract of a conference of the 

 managers of the reformatory and industrial 

 institutions of Great Britain, and information 

 concerning Russian and Siberian prisons. 



" Brochure " 2, Volume I, of the Proceed- 

 ings of the Rochester Academy of Science con- 



tains a variety of papers, among which are 

 botanical, geological, and zoological section 

 reports ; special geological and archaeological 

 articles ; a list of the indigenous ferns in 

 the vicinity of Rochester ; notes on aborigi- 

 nal implements recently found in Ironde- 

 quoit; Peru, its people, productions, and 

 physical characteristics ; the Grand Canon of 

 the Colorado ; the Economic Minerals of the 

 Ancients ; Cetaceans, etc. 



The American Journal of Morphology, 

 Volume V, No. 3, C. 0. Whitman and E. P. 

 Allis editors, contains papers on the Osteolo- 

 gy of Mesohippus and Leptomeryx, with Ob- 

 servations on the Modes and Factors of Evo- 

 lution in the Mammalia, by W. B. Scott ; The 

 Growth and Metamorphosis of Tornaria, by 

 T. H. Morgan; A Human Embryo Twenty- 

 six Days Old, by F. Mall ; On the Precocious 

 Segregation of the Sex Cells in Micrometrus 

 Aggregates, Gibbons, by Carl H. Eigenmann ; 

 Some Points in the Development of the Toad- 

 Fish (Batrachus Tau), by Cornelia M. Clapp ; 

 Development of the Epiphysis in Coregonus 

 Albus, by Charles Hill ; and Notes on the 

 Development of some Sponges, by Henry V. 

 Wilson. Boston : Ginn & Co. 



Le Poildes Animaux et les Fourrures (The 

 Hair of Animals and Furs) is a pendant to a 

 work by the same author, Lacroix-Danliard, 

 on the feathers of birds. In it the struct- 

 ure, form, and color of hair are considered ; 

 hairs are classified according to their origin 

 and consistence, and uses to which they are 

 applied, as fine hairs and downy fur; hairs 

 that are spun, woven, carded, or combed ; 

 felting and hats ; and silks, horse-hairs, and 

 their uses in brush-making and upholstery. 

 Further, the author describes the habitation, 

 ways, and hunting of the animals which fur- 

 nish the raw material of hair and fur ; the 

 places of production, markets, and prices ; 

 and, finally, gives some useful information 

 concerning the parasites of hair and the 

 means of contending against them. Paris : 

 J. B. Bailliere et Fils. 



The Journal of Physiology, edited by 

 Michael Foster and other eminent- physiolo- 

 gists, among whom are four Americans, is the 

 leading organ of original physiological inves- 

 tigation in the English language. The double 

 number, 1 and 2 of Volume XIII, contains 

 three articles with, in all, seven plates of curve 

 tracings. The articles are on Some of the In- 



