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  1. By: Hamilton, Robert A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 75
    Issue: 3
    Date: 1961
    Page Range: 161--161
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Hamilton, Robert A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 71
    Issue: 3
    Date: 1957
    Page Range: 162--162
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Hamilton, Robert A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 72
    Issue: 4
    Date: 1958
    Page Range: 178--178
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Hamilton, Robert A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 75
    Issue: 2
    Date: 1961
    Page Range: 106--106
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  5. By: Hamilton, Robert A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 76
    Issue: 1
    Date: 1962
    Page Range: 69--70
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  6. By: Hamilton, Robert A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 74
    Issue: 3
    Date: 1960
    Page Range: 167--168
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  7. By: Hamilton, Robert A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 75
    Issue: 1
    Date: 1961
    Page Range: 50--50
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  8. By: Hamilton, Robert A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 75
    Issue: 4
    Date: 1961
    Page Range: 258--258
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  9. By: Hamilton, Robert A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 72
    Issue: 2
    Date: 1958
    Page Range: 115--116
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  10. By: Hamilton, Robert A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 75
    Issue: 4
    Date: 1961
    Page Range: 260--261
    Publication Info: Ottawa Ottawa Field-Naturalists' Club