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  1. By: Cartwright, B. W. (Bertram William), - Lawrence, A. G.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 43
    Issue: 6
    Date: 1929-09
    Page Range: 132--133
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Lawrence, A. G.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 43
    Issue: 2
    Date: 1929-02
    Page Range: 42--42
    Publication Info: Ottawa Ottawa Field-Naturalists' Club