THE 



DESCENT OF MAN, 



AXD 



SELECTION IN EELATION TO SEX. 



BT 



CHARLES DARWIN, M. A., F. R. S., Etc. 



WITH ILLUSTRATIONS. 



IN TWO VOLUMES.— Yol. I. 



NEW YORK: 



D. APPLETON AND COMPANY, 



549 & 551 BROADWAY. 



1873. 



