THE 



MECHANISTIC CO'NCEPTION 



OF LIFE 



BIOLOGICAL ESSAYS 



BY 



JACQUES LOEB, M.D., PH.D., SC.D. 



MEMBER OF THE KOCKEFELLEE- INSTITUTE 

 rOE MEDICAL EESEAKCH 



THE UNIVERSITY OF CHICAGO PRESS 

 CHICAGO, ILLINOIS 



^, 



