A MANUAL 



OF THK 



STUDY OF INSECTS 



by 



JOHN HENRY COMSTOCK 



Prof essor of Entomology in Cornell University 



ANNA BOTSFORD COMSTOCK 



Member of the Society of American Wood- Engravers 



feiitemtfi (EMtfon 



ITHACA, N. Y. 



THE COMSTOCK PUBLISHING COMPANY 



1920 



