BINDING SECT. JUL 12 1968 



CR 

 181 

 WAS 3 

 1907 



h Mescal 



Mechnikvo, Il»ip Il»ch 



Iimrunity in infective 

 desepses 



I PLEASE DO NOT REMOVE 



CARDS OR SLIPS FROM THIS POCKET 



UNIVERSITY OF TORONTO LIBRARY 



