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  1. By: Thomson, Robert Boyd, - Sifton, Harold Boyd
    Publication info: [Toronto], University of Toronto Press, 1922
    Holding Institution: Cornell University Library
  2. By: Thomson, Robert Boyd, - Sifton, Harold Boyd
    Publication info: Toronto, University of Toronto Press, 1922
    Holding Institution: University of Toronto - Robarts Library
  3. By: Mickle, G. R. - Thomson, Robert Boyd,
    Publication info: Toronto, L.K. Cameron, Printer to the King's most excellent Majesty, 1913
    Holding Institution: University of California Libraries
  1. By: Thomson, Robert Boyd,
    Type: Article
    In: The Canadian field-naturalist
    Volume: 39
    Issue: 3
    Date: 1925-03
    Page Range: 65--65
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Thomson, Robert Boyd,
    Type: Article
    In: Botanical gazette
    Volume: 57
    Issue: 5
    Date: 1914
    Page Range: 362--385
    Publication Info: Hanover, Ind, [publisher not identified], 1876-1991