14 DAY USE 



RETURN TO DESK FROM WHICH BORROWED 



LOAN DEPT. 



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



on the date to which renewed. 

 Renewed books are subject to immediate recall. 



1)1*121978 



PHYSICS 



REC'D LC 



MAY 13 -65 -4 



SEC. 018. 



b 19T1 7 



^.^f/^71 



LD 21A-50m-8,'61 

 (Cl795slO)476B 



Gnt 

 University 

 Ben 



