SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOLUME 98. NUMBER 3 



THE EMBRYOLOGY OF FLEAS 



(With 12 Plates) 



BY 



EDWARD L. KESSEL 



University of San Francisco 



^2>ngto^ x 



(Publication 3527) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



MAY 1, 1939 



