212 THE HOUSE FLY—DISEASE CARRIER 
ber of each family or of several neighboring families 
hired to clean the privy regularly; or (2) the landlord 
can be held responsible for the cleaning of all privies 
of his tenants, receiving from the county a certain sum 
for the service; or (3) “trusties” from prisons might 
possibly be utilized in some districts not too sparsely 
settled; or (4) a portion of the county privy tax might 
perhaps be apportioned by school districts and be dis¬ 
tributed as prizes among the school boys who keep 
their family privies in best condition; or (5) each 
head of family might be held responsible for any soil 
pollution that may occur on his premises and be fined 
therefor. 
“Undoubtedly the problem of the privy cleaning in 
the open country is much more difficult than in cities, 
villages, and towns, and in the last instance involves 
a general education of the rising generation of school 
children, more particularly of the girls (the future 
housekeepers), in respect to the dangers of soil pollu¬ 
tion.” 
The Capture of Adult Flies Outside of Houses 
Under this heading, the plan proposed by Professor 
Hodge, mentioned in the introductory paragraphs of 
this chapter, must be considered. His idea, it will be 
remembered, is to catch the adult flies before they lay 
their eggs and before they become a nuisance in houses. 
Isolated observations by Dr. C. Gordon Hewitt have 
shown, as elsewhere stated, that in England ten to 
fourteen days elapse after an adult female fly issues 
