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  1. By: Johnson, Julius M - Griscom, Ludlow,
    Type: Article
    In: The Auk
    Volume: 29
    Date: 1912
    Page Range: 389--389
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  2. By: Johnson, Julius M
    Type: Article
    In: Torreya
    Volume: 38
    Issue: 3
    Date: 1938
    Page Range: 73--74
    Publication Info: Burlington, Vt, Torrey Botanical Club, 1901-1945
  3. By: Johnson, Julius M
    Type: Article
    In: Torreya
    Volume: 34
    Issue: 6
    Date: 1934
    Page Range: 129--138
    Publication Info: Burlington, Vt, Torrey Botanical Club, 1901-1945