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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Knight, William A.
    Type: Article
    In: Bulletin of popular information - Arnold Arboretum, Harvard University
    Volume: 6
    Series: 4
    Issue: 2
    Date: 1938-04-22
    Page Range: 7--13
    Publication Info: Jamaica Plain, Mass. [etc.], Arnold Arboretum,