PROCEEDINGS 



OF THE 



Society for 

 Experimental Biology and Medicine 



ONE HUNDREDTH MEETING 



LABORATORY FOR EXPERIMENTAL 

 EVOLUTION 

 COLD SPRING HARBOR 

 NEW YORK 

 MAY 24, 1919 

 AND 



TWENTY-SECOND MEETING 

 PACIFIC COAST BRANCH 

 BERKELEY, CALIFORNIA 

 MAY 15, 1919 



Volume XVI 

 No. 8 



NEW YORK 

 1919 



