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  1. By: Chalmers, R.
    Type: Article
    In: The Ottawa naturalist
    Volume: 15
    Issue: 2
    Date: 1901-05
    Page Range: 33--36
    Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
  2. By: Chalmers, R.
    Type: Article
    In: The Ottawa naturalist
    Volume: 19
    Issue: 2
    Date: 1905-05
    Page Range: 52--55
    Publication Info: Ottawa, Ottawa Field-Naturalists' Club,