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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Cook, Edwin F
    Type: Article
    In: Entomological news
    Volume: 65
    Date: 1954
    Page Range: 35--37
    Publication Info: [Philadelphia], American Entomological Society, 1925-
  2. By: Hansen, Dean Cyrus - Cook, Edwin F
    Type: Article
    In: Memoirs of the American Entomological Society
    Volume: 30
    Date: 1977
    Page Range: 1--203
    Publication Info: Philadelphia, American Entomological Society, 1916-