4i8 



THE POPULAR SCIENCE MONTHLY. 



we find it will not do to establish the maxim 

 as obligatory, but that it must be made very 

 .often to yield in favor of euphony or consid- 

 erations of grace in style. One of the most 

 commendable features in the present edition 

 is its complete and excellently arranged 

 index. 



Das Studium der Staatswissenschaften in 

 Amerika (The Study of the Political Sci- 

 ences in America). By Dr. E. J. James. 

 Jena : Gustav Fischer. Pp. 26. 



The substance of this publication was 

 originally contributed by the author, a pro- 

 fessor in the University of Pennsylvania, to 

 the " Jahrbiicher fiir Nationalokonomie und 

 Statistik." It comprises a clear review of 

 the present condition of the teaching of po- 

 litical economy and other branches relating 

 to public polity and administration in the 

 colleges of the United States, with specific 

 notices of the courses in those institutions 

 in which more particular attention is given 

 to it. 



Twelfth Annual Report of the United 

 States Geological and Geographical 

 Survey of the Territories. By F. V. 

 Hayden. Washington : Government 

 Printing-office. Part I. Pp. 809, with 

 154 Plates. Part II. Pp. 503, with 

 80 Plates and 1*7 Maps. 



These volumes and the accompanying 

 portfolio constitute the final report of the 

 Hayden Survey, and cover the work done in 

 1878 and until the close of the existence of 

 the survey, June 80, 18Y9. The first part 

 includes the reports of Dr. C. A. White on 

 Geology and Paleontology, and of Professor 

 A. S. Packard, Jr., and R. W. Schufeldt on 

 Zoology. The second part relates to the 

 Yellowstone National Park, and comprises 

 the "Geology" of that region, by W. H. 

 Holmes; "The Thermal Springs," by Dr. 

 A. 0. Peale; and the "Topography," by 

 Henry Gannett, E. M. 



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

 vention without Medicine or Change in 

 Diet. By William H. Hudson. Bos- 

 ton: S. E. Cassino. Pp. 14V. Price, 

 $1.25. 



Sea-sickness is regarded in this treatise 

 as the result of offenses against gravity, 

 aggravated by attempts to resist them. The 

 irregular motions of the ship are constantly 



displacing the center and the direction of 

 gravity of the body and its parts, while the 

 muscular efforts made to counteract those 

 efforts produce other shocks. Consequent- 

 ly, the system becomes thoroughly disorgan- 

 ized. The remedy recommended is to sub- 

 mit to the conditions. Secure a complete 

 relaxation of the muscles, and there will be, 

 it is asserted, no trouble. 



Cumulative Method for learning Ger- 

 man. By Adolphe Dreyspring. New 

 York: D. Appleton & Co. Pp. 253. 

 $1.50. 



The theory on which Mr. Dreyspring has 

 worked is that of repetition. His aim is to 

 teach the student German by the same kind 

 of process as that by which a native learns 

 it, and so to drill him that he shall know 

 when a phrase is formed aright, not by hav- 

 ing to go through the painful process of a 

 grammatical analysis, but simply because it 

 " sounds right." The method is then gen- 

 erally oral and conversational. The first 

 stumbling-block the student in German has 

 to meet is the " chaos," as the author well 

 styles it, of genders. Mr. Dreyspring meets 

 it by drilling the pupil in series of exercises 

 on single words in connection with the arti- 

 cles and pronouns and some adjectives. By 

 the time he has pronounced the word in a 

 dozen or twenty recurrences with the adjec- 

 tival terminations, er, c, or es, that may be 

 appropriate to the so-called gender of the 

 word marking as many adjectives, he will be 

 very apt to have gained the power of detect- 

 ing a wrong use at once by its sounding 

 wrong. Drills governed by this idea are 

 supplemented by exercises and reading-les- 

 sons, with a stock of words that is con- 

 sidered ample for the practical wants of 

 every-day life and conversation ; and when, 

 the author believes, " by constant and ever- 

 varying repetitions, these words are fully 

 mastered, the student will possess a thorough 

 knowledge of the practical framework of the 

 language." 



QuESTOES Htgienicas (Hygienic Questions). 



By Dr. Joao Pires Farinha. Rio de 



Janeiro: Typographia Nacional. Pp. 



54. 



Dr. Farinha is physician to the houses 

 of detention and correction in Rio de Ja- 

 neiro. The pamphlet before us is a collec- 



