276 



THE POPULAR SCIENCE MONTHLY. 



Horses : their Feed and their Feet. By C. E. 

 Page, M. D. New York : Fowler & Wells. Pp. 

 150. 50 cents. 



Dime Question - Books : Grammar, pp. 87 ; 

 Arithmetic, pp. 82 ; Geography, pp. 40. Syracuse, 

 N. Y. : 0. W. Bardeen. 10 cents each. 



United States Salary List and the Civil Service 

 Law, JRules and Eegulations. Washington, D. C. : 

 Henry N. Copp. Pp. 141. 35 cents. 



Prison Labor. Some Considerations in Favor of 

 maintaining the Present System. By John 8. Per- 

 ry. Albany : Weed, Parsons & Co. Pp. 128. 



The Treatment of Wounds as based on Evolu- 

 tionary Laws. By C. Pitfleld Mitchell. Hew York : 

 J. H. Vail & Co. Pp. 29. 50 cents. 



The Mounds of the Mississippi Valley Histori- 

 cally Considered. By Lucien Carr, Cambridge, 

 Mass. Pp. 107. 



Transactions of the Medical and Chirurgical Fac- 

 ulty of the State of Maryland, April, 1883. Balti- 

 more : Isaac Friedenwald. I*p. 3u2. 



Aperfu sur la Th6orie de I'Evolution (Summary 

 of the Theory of Evolution). By Dr. Ladislao Net- 

 to. Eio de Janeiro : Le Messager dn Br^sil. Pp. 22. 



Questoes Hygienicas (Hygienic Questions) : Ani- 

 mal Mephitism. The Sewers of Eio de Janeiro and 

 their Influence on the Public Health. Some Hygi- 

 enic Counsels to the People. By Dr. Joao Pires Fa- 

 rinha. Eio de Janeiro : TjT)ographia Nacional. Pp. 

 64. 



Die Physik im Dienste der Wlssenschaft, dw 

 Kunst, und des practischen Lebens (Physics in the 

 Service of Science, Art, and Practical Life). By Dr. 

 G. Krebs. Stuttgart: Ferdinand Enke. Part I. 

 Pp. 112. 2 marks. 



Beyond the Sunrise : Observations of Two Trav- 

 elers. New York : John W. Lovell Company. Pp. 

 287. 20 cents. 



King's Hand -Book of Boston. Cambridge, 

 Mass. : Moses King. Pp. 860. $1. 



Ancient Egypt in the Light of Modern Discov- 

 eries. Bv Professor H. 8. Osborn, LL. D. Cincin- 

 nati : Eobert Clarke & Co. Pp. 232. $1.25. 



The Handy Book of Object-Lessons. By J. 

 Walker. Philadelphia; J. B. Lippincott & Co, 

 Pp. 129. $1.25. 



Sea-Sickness: Its Cause, Nature, and Preven- 

 tion. By William H. Hudson. Boston : S. E. 

 Cassino&Co. Pp.147. $1.25. 



Chemistry : General, Medical, and Pharmaceu- 

 tical. By John Attfleld, F. E. S. Philadelphia : 

 Henry C. Lea's Son & Co. Pp. 727. $8. 



History and Uses of Limestones and Marbles. 

 By 8. M. Burnham. Boston : S. E. Cassino &, Co. 

 Pp. 392. 16. Illustrated. 



Natural Philosophy. By Isaac Sharpless, Sc. D., 

 and G. M. Phillips, A. M. Philadelphia: J. B. Lip- 

 pincott & Co. Pp. 842. 



A Natural History Eeader, for School and Home. 

 Compiled and arranged by James Johonnot. New 

 York : 1). Appleton & Co. Pp. 414. $1.25. Illus- 

 trated. 



Animal Life. By E. Perceval Wright, M. A., 

 M. D. London, Paris, and New York : Cassell, Fet- 

 ter, Galpin & Co. Pp. 618. $2.50. Illustrated. 



Bulletin of the United States Fish Commission. 

 Vol. 1, 1881, pp. 466 ; vol. ii, 1882, pp. 467. Wash- 

 ington : Government Printing -Office. 



The English Grammar of William Cobbett. Ee- 

 vised and annotated by Alfred Ayres. New York : 

 D. Appleton & Co. Pp. 254. $1. 



United States Geographical and Geological Sur- 

 vey of the Territories: Wyoming and Idaho. By 

 F. V. Hayden. Part I, pp. 809; Part II, pp. 608; 

 both with numerous Plates. Also a volume of 

 Maps and Panoramas. Washington : Government 

 Printing-office. 



Mineral Eesources of the United States. By 

 Albert Williams, Jr. Washington : Government 

 Printing-office. Pp. 813. 



The Law of Heredity. A Study of the Cause 

 of Variation and the Origin of Living Organisms. 

 By W. K. Brooks, Associate in Biology, Johns 

 Hopkins University. Baltimore : John Murphy & 

 Co. 1883. Pp. 336. 



Cumulati ve Method for Learning German. By 

 Adolph Dreyspring. New York : D. Appleton & 

 Co. Pp. 253. $1.50. 



POPULAR MISCELLANY. 



Glacial Theories at the American Asso- 

 ciation* — Topics connected with the glacial 

 theory received much discussion at the Min- 

 neapolis meeting of the American Associa- 

 tion. In his paper on "The Life History 

 of the Niagara River," Mr. Julius Pohlman 

 held that the falls had no part in excavat- 

 ing the gorge below the whirlpool ; but that, 

 Lake Ontario subsiding slowly, no waterfall 

 was formed at its entrance, and the lower 

 part of the gorge was worn out by the river 

 as a rapid in an old shallow valley, till 

 at the whirlpool this path met the ancient 

 river-valley, while it was along that valley 

 only that the falls receded to their present 

 site. In a paper on " Glacial Canons," W. 

 J. McGee, of Salt Lake City, suggested that 

 the formation of the cafions could be ac- 

 counted for by presuming that typical water- 

 cut canons were temporarily occupied by 

 glacial ice, which would convert them from 

 a V into a U shape, and that their features 

 do not " necessarily imply extensive glacial 

 excavation, or indicate that glaeiers are su- 

 perlatively energetic engines of erosion." 

 In his paper on the extent, character, and 

 teachings of the ancient glaciation of North 

 America, Professor Newberry maintained 

 that — 1. Glaciers covered most of the ele- 

 vated portions of the mountain-belts in the 

 far West as far south as the thirty-sixth par- 

 allel, and in the eastern half of the conti- 

 nent to the fortieth parallel of latitude. 2. 

 The ancient glaciers, which occupied the 

 area above described, were not produced by 

 local causes, but were evidences of a general 

 climatic condition. 3. They could not have 

 been the effect of a warm climate and an 

 abundant precipitation of moisture, but 

 were results of a general depression of tem- 

 perature. Having stated his objections to 

 the iceberg theory. Professor Newberry add- 

 ed that " the record of the ice period on 

 our continent is far more impressive and 

 extensive than it has been represented. The 

 phenomena were due to an extraneous and 



