







AX 



INTRODUCTION 



TO 



ENTOMOLOGY 



BY 



JOHN HENRY COMSTOCK 



'i 



PROFESSOR OF ENTOMOLOGY AND GENERAL INVERTEBRATE 

 ZOOLOGY, EMERITUS, IN CORNELL UNIVERSITY 



SECOND EDITION, KXTIKICLY REWRITTEN 



ITHAC'A, \. V. 



Till- COMSTOCK PUBLISH ENG CO. 



[920 



