BY THE SAME AUTHOR. 



ON THE ORIGIN OF SPECIES BY MEANS OF NATURAL SE- 



LECTION"; or, The Peeservation of Favored Eaces in the Struggle fob 

 Life. New and revised edition. 12mo. Cloth. 4S0 pages. Price, $2.00. 



THE DESCENT OF MAN, AND SELECTION IN RELATION TO 



SEX. "With Illustrations. New edition, revised and augmented. 12mo. Cloth. 

 704 pages. Price, $3.00. 



A NATURALIST'S VOYAGE ROUND THE ^^"ORLD ; or, A Journal 



or KeSE ARCHES INTO THE NATURAL HiSTORY AND GeOLOGY OF THE COUNTRIES 



visited during the Yoyage of H. M. S. Beagle, under the command of Captain Fitz- 

 Koy, E. N. 12mo. Cloth. 530 pages. Price, $2.00. 



THE EXPRESSION OF THE EMOTIONS IN MAN AND ANIMALS. 



"With Photographic and other Illustrations. 12mo. Cloth. Price, $3.00. 



THE THEORY OF DESCENT, AND DARWINISM. By Prof. Oscar 

 Schmidt, University of Strasburg. 12mo. Cloth. Price, $1.50. 



