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  1. Nature - Study / Wilbur S. Jackman ; edited by M. J. Holmes.
    By: Jackman, Wilbur S. - Holmes, M. J.
    Publication info: Chicago, Ill. :University of Chicago Press,1904.
    Contributed by: University of California Libraries (archive.org)
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  2. Nature-study / by Wilbur S. Jackman.
    By: Jackman, Wilbur S.
    Publication info: Chicago :University of Chicago Press,1904.
    Contributed by: University of Connecticut Libraries (archive.org)
    View Book