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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Gordon, Ann Elizabeth
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 85
    Date: 1972
    Page Range: 279--286
    Publication Info: Washington, Biological Society of Washington,
  2. By: Ross, Herbert H. (Herbert Holdsworth), - Morse, J C - Gordon, Ann Elizabeth
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 84
    Date: 1971
    Page Range: 301--306
    Publication Info: Washington, Biological Society of Washington,