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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Ames, Oakes, - Schweinfurth, C
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 43
    Date: 1930
    Page Range: 195--196
    Publication Info: Washington, Biological Society of Washington,
  2. By: Schweinfurth, C
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 10
    Issue: 3
    Date: 1929
    Page Range: 169--174
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-