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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Hans, A S
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 51
    Issue: 4
    Date: 1970
    Page Range: 534-539
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  2. By: Hans, A S
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 53
    Issue: 2
    Date: 1972
    Page Range: 216--225
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-