EMBRYOLOGY OF 

 INSECTS AND MYRIAPODS 



The developmental history of insects^ centipedes, and 

 millepedes from egg desposition to hatching 



BY 



OSKAR A. JOHANNSEN 



Professor of Entomology, Emeritus, Cornell University 

 AND 



FERDINAND H. BUTT 



Instructor in Insect Morphology, Embryology, and Histology 

 Cornell University 



FiKST Edition 





McGRAW-HILL BOOK COMPANY, Inc. 



NEW YORK AND LONDON 

 1941 



