The person charging this material is re- 

 sponsible for its return 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 



AUG 12 1971 



AU6 1 1993 



L161— O-1096 



