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  1. Modern views of physical science; being a record of the proceedings of the centenary meeting of the Franklin Institute at Philadelphia, September 17, 18 and 19, 1924, by Ellwood Hendrick, SC. D.
    By: Franklin Institute (Philadelphia, Pa.) - Hendrick, Ellwood,
    Publication info: Philadelphia,Franklin Institute,1925.
    Contributed by: University of Pittsburgh Library System (archive.org)
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