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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Slifer, E H
    Type: Article
    In: Entomological news
    Volume: 71
    Date: 1960
    Page Range: 179--182
    Publication Info: [Philadelphia], American Entomological Society, 1925-
  2. By: Slifer, E H
    Type: Article
    In: Entomological news
    Volume: 87
    Date: 1976
    Page Range: 275--279
    Publication Info: [Philadelphia], American Entomological Society, 1925-