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  1. By: Johnston, Alex
    Type: Article
    In: The Canadian field-naturalist
    Volume: 84
    Issue: 2
    Date: 1970
    Page Range: 180--181
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Smoliak, S. - Johnston, Alex
    Type: Article
    In: The Canadian field-naturalist
    Volume: 92
    Issue: 1
    Date: 1978
    Page Range: 85--89
    Publication Info: Ottawa Ottawa Field-Naturalists' Club