Return this book on or before the 
Latest Date stamped below. 
University of Illinois Library 
JUL 1 8 IS 
®l/f 25 ,, 
ÄPR 1 9 ' 
my l 
160 
* 6 ? 
1961 
7 1961 
0EC 2 8 19^ 
MAY 3 0 Bfö 
L161—H41 
