14 DAY USE 



RETURN TO DESK FROM WHICH BORROWED 



EARTH SCIENCES LIBRARY 



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



on the date to which renewed. 

 Renewed books aresjibject to immediate recall. 



-1 1977 



JU 



LD 21-40m-5,'65 

 (F4308slO)476 



General Library 



University of California 



Berkeley 



