THE ELEMENTS 



OF 



INSECT ANATOMY 



AN OUTLINE FOR THE USE OF STUDENTS 

 IN ENTOMOLOGICAL LABORATORIES 





BY 



JOHN HENRY COMSTOCK 



PROFESSOR OF ENTOMOLOGY AND GENERAL INVERTEBRATE ZOOLOGY 

 IN CORNELL UNIVERSITY 



AND 



VERNON L. KELLOGG 



PROFESSOR OF ENTOMOLOGY IN LELAND STANFORD, JR., UNIVERSITY 



SEVENTH EDITION, REVISED 



ITHACA, NEW YORK 



COMSTOCK PUBLISHING CO. 



1910 



