STATE OF ILLINOIS 

 DEPARTMENT OF REGISTRATION AND EDUCATION 



DIVISION OF THE 

 NATURAL HISTORY SURVEY 



STEPHEN A. FORBES. Chief 



Vol. XVI. 



BULLETIN 



Article V. 



An Experimental Investigation of the 

 Relations of the Codhng Moth to 

 Weather and Climate 



VICTOR E. SHELFORD 



PRINTED BY AUTHORITY OF THE STATE OF ILLINOIS 



URBANA. ILLINOIS 

 March, 1927 



