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  1. By: Howitt, Henry
    Type: Article
    In: The Canadian field-naturalist
    Volume: 45
    Issue: 6
    Date: 1931-09
    Page Range: 148--149
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Howitt, Henry
    Type: Article
    In: The Canadian field-naturalist
    Volume: 39
    Issue: 7
    Date: 1925-10
    Page Range: 158--160
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Howitt, Henry
    Type: Article
    In: The Canadian field-naturalist
    Volume: 40
    Issue: 9
    Date: 1926-12
    Page Range: 193--193
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Howitt, Henry
    Type: Article
    In: The Canadian field-naturalist
    Volume: 39
    Issue: 5
    Date: 1925-05
    Page Range: 110--111
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  5. By: Howitt, Henry
    Type: Article
    In: The Canadian field-naturalist
    Volume: 46
    Issue: 2
    Date: 1932-02
    Page Range: 27--30
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  6. By: Howitt, Henry
    Type: Article
    In: The Canadian field-naturalist
    Volume: 44
    Issue: 4
    Date: 1930-04
    Page Range: 96--96
    Publication Info: Ottawa Ottawa Field-Naturalists' Club