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  1. The house fly, disease carrier; an account of its dangerous activities and of the means of destroying it, by L.O. Howard, PH. D.
    By: Howard, L. O. (Leland Ossian),
    Publication info: New York,Frederick A. Stokes Company[c1911]
    Contributed by: Smithsonian Libraries
    Subjects: Control  Flies  Flies as carriers of contagion  
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