STATE OF ILLINOIS 
DEPARTMENT OF REGISTRATION AND EDUCATION 
DIVISION OF THE 
NATURAL HISTORY SURVEY 
STEPHEN A. FORBES, Chief 
Vol. XIV. BULLETIN Article IIL. 
A Study of the Malarial Mosquitoes 
of Southern Illinois 
Il. OPERATIONS OF 1920 
BY 
STEW ART C. CHANDLER 
PRINTED BY AUTHORITY OF THE STATE OF ILLINOIS 
URBANA, ILLINOIS 
November, 1921 
