The person charging this material is re- 
sponsible for its return to the library from 
which it was withdrawn on or before the 
Latest Date stamped below. 
Theft, mutilation, and underlining of books 
are reasons for disciplinary action and may 
result in dismissal from the University. 
UNIVERSITY OF ILLINOIS LIBRARY AT URBANA-CHAMPAIGN 
JUN 2 6 1971 
1 
L161 — O-1096 
