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  1. By: Graff, Ludwig von, - Böhmig, Ludwig,
    Publication info: Leipzig, Winter, 1904-
    Holding Institution: Smithsonian Libraries and Archives
  1. By: Böhmig, Ludwig,
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 20
    Series: 5
    Date: 1887
    Page Range: 308--312
    Publication Info: London Taylor and Francis, Ltd
  2. By: Böhmig, Ludwig,
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 20
    Series: 6
    Date: 1897
    Page Range: 324--326
    Publication Info: London Taylor and Francis, Ltd