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  1. By: Mitchell, Margaret H. (Margaret Howell), - Royal Ontario Museum of Zoology.
    Publication info: Toronto, University of Toronto Press, 1935
    Holding Institution: University of Toronto - Royal Ontario Museum Library & Archives
  1. By: Mitchell, Margaret H. (Margaret Howell),
    Type: Article
    In: The Canadian field-naturalist
    Volume: 60
    Issue: 6
    Date: 1946
    Page Range: 136--136
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Mitchell, Margaret H. (Margaret Howell),
    Type: Article
    In: The Canadian field-naturalist
    Volume: 51
    Issue: 8
    Date: 1937-11
    Page Range: 115--117
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Mitchell, Margaret H. (Margaret Howell),
    Type: Article
    In: The Canadian field-naturalist
    Volume: 61
    Issue: 2
    Date: 1947
    Page Range: 68--69
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Mitchell, Margaret H. (Margaret Howell),
    Type: Article
    In: The Canadian field-naturalist
    Volume: 43
    Issue: 7
    Date: 1929-10
    Page Range: 147--152
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  5. By: Mitchell, Margaret H. (Margaret Howell),
    Type: Article
    In: The Canadian field-naturalist
    Volume: 57
    Issue: 4-5
    Date: 1943
    Page Range: 92--92
    Publication Info: Ottawa Ottawa Field-Naturalists' Club