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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Roper, Clyde F E - Lu, Chung Cheng - Mangold, Katharina
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 82
    Date: 1969
    Page Range: 295--322
    Publication Info: Washington, Biological Society of Washington,