14 DAY USE 



RETURN TO DESK FROM WHICH BORROWED 



BIOLOGY LIBRARY 



TEL. NO. 642-2532 



This book is due on the last date stamped below, or 



on the date to which renewed. 

 Renewed books are subject to immediate recall. 



SEP 22 1969 



SEP 23J963 16 



AUG 2 1973 



AU6 3U I9/J19 



General Library 



University of California 



Berkeley 



LD 2lA-12m-5,'68 

 (J401slO)476 



