14 DAY USE 



RETURN TO DESK FROM WHICH BORROWED 



_i^ 



on tEe last date stamped below, or 

 on the date to which renewed. 

 Renewed books are subject to immediate recall. 



APR 2 9 1966 







2n 



Aftv. 



tot 



'1 t963 



BIOLOGY ST 



CK3 



