A TEXT-BOOK OF 



FIELD ZOOLOGY 



INSECTS AND THEIR NEAR 

 RELATIVES AND BIRDS 



BY 



L. E. CRARY 



ASSISTANT PROFESSOR OF BIOLOGY AND GEOLOGY, KANSAS STATE 

 NORMAL COLLEGE, EMPORIA. 



WITH ONE HUNDRED AND SEVENTEEN ILLUSTRATIONS 



PHILADELPHIA 



P. BLAKISTON'S SON & CO. 



1012 WALNUT STREET 



1911 



