VOL. I. Ser. B. Part 2 -pp. 21-43. FEBRUARY, 1913, 



THE REVIE 

 OF APPLIED 

 ENTOMOLOGY. 



SERIES B: MEDICAL 

 AND VETERINARY. 



ISSUED BY THE IMPERIAL 

 BUREAU OF ENTOMOLOGY. 



LONDON: 



SOLD BY 



DULAU & Co., Ltd., 37, SOHO SQUARE, W. 

 Price 6d. net* 



All Rights Reserved, 



