Catalogue oj Publications 



of the 



Open Court Publishiiig Company 



Chicago, Morion Building, J24 Dearborn St. 



London, Kegan Paul, Trench, Triibner ^^ Co, 



SUNDARA ROW, T. 



GEOMETRICAL EXERCISES IN PAPER-FOLDING. 



With Half-Tones from Photographs of Exercises. Pages, x + 148. 

 Cloth, $1.00 net (4s. 6d. net). 



COPE, E. D. 



THE PRIMARY FACTORS OF ORGANIC EVOLUTION. 

 121 cuts. Pp. xvi, 547. Cloth, J2. 00 (ids.). 



MiJLLER, F. MAX. 



THREE INTRODUCTORY LECTURES ON THE SCIENCE OF 

 THOUGHT. 

 128 pages. Cloth, 75c {3s. 6d.). 



THREE LECTURES ON THE SCIENCE OF LANGUAGE. 

 112 pages. 2nd Edition. Cloth, 75c (3s. 6d.). 



ROMANES, GEORGE JOHN. 

 DARWIN AND AFTER DARWIN. 



Three Vols., $4.00. Singly, as follows : 



1. The Darwinian Theory. 460 pages. 125 illustrations. Cloth, $2.00. 



2. Post-Darwinian Questions. Heredity and Utility. Pp.338. 81.50. 



3. Post-Darwinian Questions. Isolation and Physiological Selection. 

 Pp. 181. $1.00. 



AN EXAMINATION OF WEISMANNISM. 

 236 pages. Cloth, $1.00. 



THOUGHTS ON RELIGION. 



Third Edition, Pages, 184. Cloth, gilt top, $1.25. 



SHUTE, DR. D. KERFOOT. 



FIRST BOOK IN ORGANIC EVOLUTION. 



g colored plates, 39 cuts. Pp. xvi -|- 285. Price, $2.00 (7s. 6d.). 



MACH, ERNST. 



THE SCIENCE OF MECHANICS. 



Trans, by T. J. McCormack. 2nd ed. 250 cuts. 540 pages. $1.75 net 



(7S. 6d.). 



POPULAR SCIENTIFIC LECTURES. 



Third Edition. 415 pages. 59 cuts. Cloth, gilt top. 81.50 (7s. 6d.). 



THE ANALYSIS OF THE SENSATIONS. 

 Pp. 208. 37 cuts. Cloth, $1.25 (6s. 6d.). 



LAGRANGE, JOSEPH LOUIS. 



LECTURES ON ELEMENTARY MATHEMATICS. 



With portrait of the author. Pp. 172. Price, $1 00 (5s.). 



DE MORGAN, AUGUSTUS. 



ON THE STUDY AND DIFFICULTIES OF MATHEMATICS. 

 New Reprint edition with notes. Pp. viii-(-288. Cloth, 81.25 (5s.). 



ELEMENTARY ILLUSTRATIONS OF THE DIFFERENTIAL AND 

 INTEGRAL CALCULUS. 

 New reprint edition. Price, 81.00 (5s. K 



