Illinois State Laboratory of Natural History 



STEPHEJN A. FORBIiS, Director 



In Cooperation with the Forest Service 

 U. S. Department of Agriculture 



HBNRY S. GRAVES, FORESTER 



FOREST CONDITIONS IN ILLINOIS 



BY 



R. CLIFFORD HALL and O. D. INGALL 



Forest Assistant and Forest Agent 



Forest Service 



June, 1910 



