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  1. By: Kansas State University of Agriculture and Applied Science.
    Publication info: Manhattan, Kansas state agricultural college, 1919
    Holding Institution: Library of Congress
    Subjects: 1879-1955  Jardine, William Marion,  
  2. Publication info: Utica, N.Y, Science Press, c1921
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: 1879-1955  Einstein, Albert,  Science