How To Know 



THE IMMATURE 

 INSECTS 



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An illustrated key for identifying the orders and 

 families of many of the immature insects with 

 suggestions for collecting, rearing and studying 

 them. 



H. F. CHU. Ph.D. 



Zoologist Institute of Zoology, 



National Academy of Peiping. 



Peiping, China 



1946-47 Visiting Professor 

 Iowa Wesleyan College 



M. C. BROWN COMPANY PUBLISHERS 



Dubuque, Iowa 



