THE HOUSE FLY 53 



should not be destroyed, or, at least an effort be made to 

 keep them from polluting food prepared for you to eat. 



Flies are disease carriers. 



Live and breed in all kinds of filth. 



Infect food and drink by germ-laden feet. 



Each female fly can lay 150 eggs. 



Should be kept out of dwellings. 



(1) Flies breed in horse manure, cow dung, decaying 

 vegetables, garbage of all descriptions, dead animals, and 

 human excrement. Flies are Nature's scavengers, it is 

 true, filling the same function as some bacteria do, but 

 become an intolerable nuisance and danger when entering 

 human dwellings and contaminating foods. 



(2) The presence of flies is a direct evidence of careless 

 housekeeping and the existence of filth in some form about 

 the premises. 



(3) Remember that when and where absolute cleanliness 

 prevails there will be no flies. 



(4) Look after the garbage cans. See that they are 

 daily sprinkled with kerosene or lime, and effectively 

 covered. 



(5) Do the same thing to manure heaps, and remove 

 all manure from stables every three or four days, and 

 when removed, cover with lime and sand. 



(6) Look carefully after the cuspidors. They require 

 constant attention. This is particularly true in hotels, 

 boarding-houses, station-houses, railroad stations, and 

 in fact wherever people congregate in large numbers. 



(7) Flies are fond of feasting on tuberculous sputum, 

 and hover over cuspidors. The specks of flies contain live 

 tubercle bacilli after they have eaten tuberculous sputum, 



