Poulton, Edward Bagnall (1856–1943)
Eltringham, Harry (1873–1941)
Marsh, Charles Dwight (1855–1932) Clawson, Arthur Brooks (1878–1937) Marsh, Hadleigh (1888-?)
Karl, Otto (1868–1945)
United States Department of Agricultur.
Poulton, Edward Bagnall (1856–1943) Cott, Hugh Bamford (1900–1987)
Hunter, George W. (1873–1948)
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