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  1. Pathogenic micro-organisms, including bacteria and Protozoa; a practical manual for students, physicians and health officers, by William Hallock Park...assisted by Anna W. Williams...With 165 engravings and 4 full-page plates.
    By: Park, William Hallock, - Williams, Anna W.,
    Edition: 2d ed., enl. and thoroughly rev.
    Publication info: New York andLea brothers & co.,1905.
    Contributed by: University of California Libraries (archive.org)
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