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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Russell, P
    Type: Article
    In: Journal of the Washington Academy of Sciences
    Volume: 14
    Date: 1924
    Page Range: 265--269
    Publication Info: Washington [etc Washington Academy of Sciences]
  2. By: Russell, P
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 51
    Date: 1938
    Page Range: 183--184
    Publication Info: Washington, Biological Society of Washington,