STATE OF ILLINOIS 
HENRY HOorRNER, Governor 
LAKE MANAGEMENT REPORTS 
1. Horseshoe Lake near Cairo, Illinois 
David H. Thompson 
and 
George W. Bennett 
DEPARTMENT OF REGISTRATION AND EDUCATION 
JOHN J. HALLIHAN, Director 
DIVISION OF THE NATURAL HISTORY SURVEY 
Theodore H. Frison, Chief 
Biological Notes No. 8 Urbana, Illinois September, 1938 
[Printed by authority of the State of Illinois] 
