346 



House-Flies in Mesopotamia 



The remaining localities mentioned were, for the most part, in a 

 very filthy state. The Arab compounds and villages were usually packed 

 with live-stock — horses, cows, dogs, fowls, sparrows, rats, and lizards — 

 and their excreta — all providing ideal conditions for the breeding of 

 flies and the transmission of parasites. 



The "dirty end'' of the bazaar was open to the sky and crowded 

 with the stalls of Arab vendors of meat, vegetables, and sweetmeats; 

 it was always swarming with flies, but live-stock was, of course, very 

 much less in immediate evidence than in compounds and villages. 



4. Season and Incidence. 



It will be seen from the table below that the dissections of flies 

 from the regions mentioned were continued from March 9, 1918, until 

 September 26, 1918, with breaks during May and August. It will be 

 noticed at once that flies infected with the cestode were only found 

 during the month of April. After the 30th of that month frequent 

 examination of flies from the same localities failed to yield a single 

 parasite. 



Table of Examinations. 



