- Lawrence E. Hicks, Adolph E. Waller, Alfred Nelson Watson, Arthur Glenn Chapman, Bernard B. Meyer, Bernard S. Meyer, Ching Li Liang, Clyde Harold Jones, Edgar Nelson Transeau, Ervin Merritt Herrick, Gilford J. Ikenberry, Helen L. Chrysler, Hiram F. Thut, Homer Cleveland Sampson, John Henry Schaffner, Lewis Hanford Tiffany, Ohio State University. Department of Botany, Oliver D. Diller, Paul Jackson Kramer, R. O. Freeland, Robert Benson Gordon, Vincent H. Morris, Wendell Holmes Camp, Elbert H. Ahlstrom, F. G. Liming, Robert H. McCormick
· 1929
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