PROCEEDINGS 



OF THE 



Society for 

 Experimental Biology and Medicine 



ONE HUNDRED TWELFTH MEETING 

 COLLEGE OF PHYSICIANS AND SURGEONS 

 NEW YORK CITY 



JANUARY io, 1 92 1 

 AND 



TWENTY-SEVENTH MEETING 

 PACIFIC COAST BRANCH 

 BERKELEY, CALIFORNIA 

 JANUARY 12, 192 1 



Volume XVIII 

 No. 4 



NEW YORK 

 1921 



