i 1901 

 BULLETIN 



Illinois Qtate [ aboratory 



OK 



NATURAL HISTORY 



Urbana. Illinois. 



VOLUME V. 



ARTICLE XII. THE HIRUDINEA OF ILLIAWIS. 



Bv J, PERCY MOORE. 



Illinois State Laboratory of Natural History 



IHBAXA, ILLINOIS. 



February, J 90 1. 



