THE 



EVOLUTION THEORY 



BY 



Dr. august WEISMANN 



PROFESSOR OF ZOOLOGY IN THE UNIVERSITY OF FREIBURG IN BHEISGAU 



TRANSLATED WITH THE AUTHOR'S CO-OPERATION 



BY 



J. ARTHUR THOMSON 



HEGIUS I'HOFESSOn OF NATURAL HISTOKY IN THE UNIVERSITY OF ABERDEEN 



AND 



MARGARET R. THOIMSON 



ILLUSTRATED 



IN TWO VOLUMES 

 VOL. II 



LONDON 

 EDWARD ARNOLD 



41 & 43 MADDOX STREET, BOND STREET, W. 



1904 



All rights reserved 



T 



Digitized by Microsoft® 



