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  1. By: MacLachlan, J. D. - Crowell, Ivan H
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 18
    Issue: 2
    Date: 1937
    Page Range: 149--163
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  2. By: MacLachlan, J. D.
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 16
    Issue: 4
    Date: 1935
    Page Range: 411--422
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  3. By: MacLachlan, J. D.
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 16
    Issue: 1
    Date: 1935
    Page Range: 98--142
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  4. By: MacLachlan, J. D.
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 17
    Issue: 1
    Date: 1936
    Page Range: 1--25
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-