PREVENTIVE MEASURES 
223 
work, and the whole association seeks the opportunity 
to co-operate directly with civic societies of every char¬ 
acter, such as women’s clubs, local civic leagues, con¬ 
sumers’ leagues, school improvement societies, and all 
organized bodies, in a direct crusade against the ty¬ 
phoid fly. 
The association publishes bulletins with full infor¬ 
mation as to the life history and habits of this fly and 
with the most practical suggestions, secured after con¬ 
ference with the leading physicians and entomologists. 
These bulletins are sent to societies in quantities, but 
there is sometimes a small charge for very large quan¬ 
tities. The association also co-operates directly in pro¬ 
viding press clipping sheets that may be used to great 
advantage with local newspapers, calling attention to 
the dangers in permitting flies to breed unrestrictedly. 
It maintains also a department of lantern slides, which 
includes a large collection of pictures, some of them 
descriptive of the life history of Musca domestica, and 
others being reproductions of striking cartoons from 
the newspapers, and of effective posters that have been 
used by health boards and may be used for display in 
public places, such as shops, railroad stations, and on 
the street cars, to call attention to the dangers sur¬ 
rounding the existence of the fly. It has also a very 
effective moving-picture film which can be rented by 
societies and which is a most effective manner of pre¬ 
senting vividly the objectionable habits of the house 
fly. 
The association has also, for use by societies willing 
