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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Wulf, Oliver R - James E, Zimmerman
    Type: Article
    In: Smithsonian miscellaneous collections
    Volume: 123
    Issue: 3
    Date: 1954-10-27
    Page Range: 1--14
    Publication Info: Washington Smithsonian Institution 1862-1972