'"^^Ib 



BULLETIN 



4 



iS mmu 



NATURAL HISTORY, 



Urbana, Illinois. 



X'OLUME V. 



Contributions to a Knowledge of the Natural 

 History of Illinois. 



1897-1901. 



IlliTii>is Siaie Laboratory of Natural History, 



Urbana, 111. 



1902. 



