14 DAY USE 



RETURN TO DESK FROM WHICH BORROWED 



EARTH SCIENCE I 



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



on the date to which renewed. 

 Renewed books are subject to immediate recall. 



MAY 2 2 1969 



LD 21-50m-4,'63 

 (D647l8lO)4T6 



General Library 

 University of California 



