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  1. By: Hewitt, O H
    Type: Article
    In: The Canadian field-naturalist
    Volume: 62
    Issue: 1
    Date: 1948
    Page Range: 45--45
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Hewitt, O H
    Type: Article
    In: The Canadian field-naturalist
    Volume: 59
    Issue: 2
    Date: 1945
    Page Range: 50--50
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Hewitt, O H
    Type: Article
    In: The Canadian field-naturalist
    Volume: 64
    Issue: 2
    Date: 1950
    Page Range: 73--76
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Hewitt, O H
    Type: Article
    In: The Canadian field-naturalist
    Volume: 62
    Issue: 4
    Date: 1948
    Page Range: 123--124
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  5. By: Hewitt, O H
    Type: Article
    In: The Canadian field-naturalist
    Volume: 64
    Issue: 1
    Date: 1950
    Page Range: 52--53
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  6. By: Hewitt, O H
    Type: Article
    In: The Canadian field-naturalist
    Volume: 59
    Issue: 1
    Date: 1945
    Page Range: 45--45
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  7. By: Hewitt, O H
    Type: Article
    In: The Canadian field-naturalist
    Volume: 60
    Issue: 6
    Date: 1946
    Page Range: 131--131
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  8. By: Ingram, William Marcus - Hewitt, O H
    Type: Article
    In: The Nautilus
    Volume: 56
    Date: 1943
    Page Range: 92--95
    Publication Info: Melbourne, Fla., etc American Malacologists, inc., etc