V'. 



MAN'S 



EFFECT 



ON THE FISH 



AND WILDLIFE 



OF THE ILLINOIS 



RIVER 



inois 



Natural History Survey 

 Biological Notes No. 57 

 Urbana, Illinois 

 June, 1966 



f^ATUHAi 



mio,]f 



JU/^ .-: 





Harlow B. Mills, William C. Starrett, and Frank C. Bellrose 



TE OF ILLINOIS DEPARTMENT OF REGISTRATION AND EDUCATION NATURAL HISTORY SURVEY DIVISION 



