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  1. By: Hart, John Lawson
    Type: Article
    In: The Canadian field-naturalist
    Volume: 48
    Issue: 6
    Date: 1934-09
    Page Range: 103--104
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Hart, John Lawson
    Type: Article
    In: The Canadian field-naturalist
    Volume: 45
    Issue: 1
    Date: 1931-01
    Page Range: 8--9
    Publication Info: Ottawa Ottawa Field-Naturalists' Club