420 Animal Biology 



Essig: College Entomology, The Macmillan Co. 



Frost: General Entomology, McGraw-Hill Book Co., Inc. 



Jacques: How to Know the Insects, William C. Brown Co. 



Lutz: Fieldbook of Insects, G. P. Putnam's Sons. 



Metcalf and Metcalf: A Key to the Principal Orders and Families of Insects, 

 North Carolina State College. 



Needham et al. : Culture Methods for Invertebrate Animals, Comstock Publish- 

 ing Co., Inc. 



Peterson: A Manual of Entomological Equipment and Methods (Part I), Ed- 

 wards Bros., Inc. 



Peterson: A Manual of Entomological Equipment and Methods (Part II), John 

 S. Swift Co., Inc. 



Swain: The Insect Guide, Doubleday & Co. 



