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  1. Hidden beauties of nature.
    By: Kerr, Richard.
    Edition: 2d ed.
    Publication info: London,The Religious Tract Society,1900.
    Contributed by: University of California Libraries (archive.org)
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  2. Nature through microscope & camera by Richard Kerr. With sixty-five photo-micrographs by Arthur E. Smith. 2d impression.
    By: Kerr, Richard.
    Publication info: London,The Religious Tract Soc.,1909.
    Contributed by: University of California Libraries (archive.org)
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