Unirep Srates DrrparTMENT or AGRICULTURE, 
OFFICE OF THE SECRETARY, 
Washington, D. C., June 6, 1911. 
To the farmers of the United States: 
Nothing is-‘more important to the farmer than good health. Good 
health can not be preserved if the sanitary conditions of the farm 
are bad. Among the worst conditions ever to be found about any 
home is a soil that has become polluted with excrement from the 
human body. A number of widely prevalent diseases have been 
spread by means of such polluted soil, simply because the facts have 
not been generally known. This bulletin treats of such soil pollu- 
tion and certain simple plans for avoiding it. 
Having at heart the best interests of the American farmer and his 
family, I consider it my personal duty to appeal to every American 
farmer to weigh well the facts here presented, to do all in his power 
to remove any insanitary conditions that he may find on his farm or 
in his neighborhood, and thus, by protecting the members of his 
family, perform one of his highest patriotic duties. 
James WILson, 
Secretary of Agriculture. 
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