STATE OF ILLINOIS 

 DEPARTMENT OF REGISTRATION AND EDUCATION 



DIVISION OF THE 

 NATURAL HISTORY SURVEY 



STEPHEN A. FORBES, Chief 



Vol. XVI. 



BULLETIN 



Article VI. 



A Study of the Catalase Content 

 of Codling Moth Larvae 



BY 



C. S. SPOONER 



PRINTED BY AUTHORITY OF THE STATE OF ILLINOIS 



URBANA. ILLINOIS 

 March, 1927 



