

THE REVIEW 

 OF APPLIED 

 ENTOMOLOGY. 



^ 



SERIES B: MEDICAL 

 AND VETERINARY. 



VOL. X. 



ISSUED BY THE IMPERIAL 

 BUREAU OF ENTOMOLOGY. 



:^ 





rs^9o(,s 



LONDON : 



THE IMPERIAL BUREAU OF ENTOMOLOGY, 



41, QUEEN'S GATE, LONDON, S.W.7. 



1922. 



All Rights Reserved. 



