f 



THE 



EVOLUTION THEORY 



BY 



Dr. august WEISMANN 



PROFESSOR OF ZOOLOGY IN THE UNIVERSITY OF FREIBURG IN BREISGAU 



TRANSLATED WITH THE AUTHOR'S CO-OPERATION 



BY 



J. ARTHUR THOMSON 



HEGIUS PROFESSOR OF NATURAL HISTORY IN THE UNIVERSITY OF ABERDEEN 



AND 



MARGARET R. THOMSON 



ILLUSTRATED 



IN TWO VOLUMES 

 VOL. II 



LONDON 

 EDWARD ARNOLD 



41 & 43 MADDOX STREET, BOND STREET, W. 



1904 



ig3CWWaBr.-l J 111. JA L— B 



All rights reserved 



SEEN BY 

 PRESERVATION 



UWilt JUBM 



DATE. 



£-*i.tfM,^-7a.». J13LA.A&2A :•■. 



