SCIENTIFIC LITERATURE. 



129 



be certain of no doctrine, but the most we 

 can do to establish it is to show that the 

 balance of probabilities is in favor of it; 

 that philosophy is the life of science and 

 science the vital breath of philosophy, and 

 if one is severed from the other both pine 

 away and die ; and that those scientific re- 

 searches are successful which are not exclu- 

 sively special, but are illuminated by an 

 ample idea of science. The book is the 

 outcome of a series of lectures given to 

 classes in Union College to supplement their 

 work in formal logic. 



The Text-Book of Geodetic Astronomy* 

 was prepared by Mr. John F. Hayford to 

 meet the conditions of the course at Cornell 

 University, the terms of which the standard 

 works now in use could not be made to fit. The 

 purpose of the book is to furnish a text short 

 and easy enough to be mastered by the stu- 

 dent of civil engineering in a single college 

 term which shall give him a sufficiently ex- 

 act and extensive knowledge of geodetic 

 astronomy to serve as a basis for practice in 

 that line after graduation. While it is pri- 

 marily a manual for students, the author has 

 endeavored to insert such matter, tables, and 

 convenient formulas as would make it of 

 value also to the engineer making astronom- 

 ical observations. Mathematical processes 

 have been omitted, except those that are 

 actually necessary for developing the work- 

 ing formulas, and simple and special means 

 for deriving the formulas have been chosen 

 in every case admitting choice. Consider- 

 able attention has been devoted to a discus- 

 sion of the various sources of error in each 

 kind of observations. Those formulas have 

 been selected, so far as possible, that lead to 

 accurate and rapid computation. 



FAnnee Fsychologique\ of M. Alfred 

 Binct and his colaborers in the Laboratory of 

 Physiological Psychology of the Sorbonne, 

 Paris, is now in its fourth year, and the four 



* A Text-Book of Geodetic Astronomy. By 

 John F. Hayford. New York: John Wiley & 

 Sons. Pp. 851, with plates. 



t L'Annee P.sychologique. Edited by Alfred 

 Binet— with the Collaboration of H. Beaunis, Th. 

 Pubot and Bourdon, Courtier, Farrand, Flournoy, 

 Philippe, Vaschide, and Warren. Editorial sec- 

 retary, Victor Henri. Fourth year. Paris: Li- 

 brairie C. Reinwald. Schleicher Brothers, pub- 

 lishers. Pp 849. Price, 15 francs. 



VOL. LIV. 10 



volumes present a compendium of the psy- 

 chological studies and literature of the pe- 

 riod they cover, the value of which will be 

 appreciated by any one who has occasion to 

 examine the work. The first volume was a 

 book of 619 pages, with 33 figures ; the sec- 

 ond, of 1010 pages, 141 figures, and several 

 plates; the third, of 825 pages, 103 figures, 

 and numerous plates ; and the present vol- 

 ume has 849 pages and 117 figures. The 

 plan of all the volumes is the same ; it is to 

 present in full the labors of the laboratory, 

 with original memoirs, and to give a con- 

 densed but adequate and classified summary 

 of the world's literature of the year relating 

 to the subject. The present volume con- 

 tains twenty-seven original memoirs, mostly 

 by Professor Binet and M. N. Vaschide, 

 with others by M. B. Bourdon and Mr. A. 

 Le Gere ; about ninety reviews of books 

 and papers, classified under sixteen heads, 

 according as they relate to the physiology of 

 the nervous system, the several senses, men- 

 tal faculties and operations, movements, in- 

 dividual psychology and character, sleep, 

 dreams, and pathological cases, and animal 

 psychology; a bibliography, also classified, 

 of 123 pages; and an index of authors, oc- 

 cupying 17 double-columned pages. 



Prof. Cyrus Thomas has given, in his 

 Introduction to the Study of North American 

 Archaeology* a brief summary of the prog- 

 ress in the investigation and study of the 

 subject which has been made up to the pres- 

 ent time. The increased activity among 

 students, the numerous explorations made, 

 the accumulation of data and the flood of 

 light thrown on questions relating to pre- 

 historic North America since the publication 

 of the last general work on it seemed to call 

 for such a summary. While the author's 

 chief object is to present and arrange the 

 -data so as to afford the student some means 

 of bringing into harmony and utilizing the 

 facts and materials at hand, yet, in view of the 

 impossibility of presenting a full account of 

 the arcluEological remains of the continent, 

 and discussing all the questions connected 

 with them in a single small volume, only thos-e 

 considered the best representatives of the 



* Introduction to the Study of North Amer- 

 ican Archaeology. By Prof. Cyrus Thomas. Cin- 

 cinnati: The Kobert Clarke Company. Pp. 391. 



