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  1. By: Ruttan, R. F. (Robert Fulford), - McGill University.
    Publication info: Montreal, [s.n.], 1917
    Holding Institution: Canadiana.org
  1. By: Ruttan, R. F. (Robert Fulford),
    Type: Article
    In: The Ottawa naturalist
    Volume: 12
    Issue: 12
    Date: 1899-03
    Page Range: 263--264
    Publication Info: Ottawa, Ottawa Field-Naturalists' Club,