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  1. By: Lett, William Pittman
    Type: Article
    In: The Ottawa naturalist
    Volume: 3
    Issue: 1
    Date: 1889-04
    Page Range: 18--23
    Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
  2. By: Lett, William Pittman
    Type: Article
    In: The Ottawa naturalist
    Volume: 4
    Issue: 5
    Date: 1890-08
    Page Range: 75--91
    Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
  3. By: Lett, William Pittman
    Type: Article
    In: The Ottawa naturalist
    Volume: 1
    Issue: 9
    Date: 1887-12
    Page Range: 127--132
    Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
  4. By: Ballantyne, J. - Lett, William Pittman
    Type: Article
    In: The Ottawa naturalist
    Volume: 4
    Issue: 11
    Date: 1891-02
    Page Range: 198--199
    Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
  5. By: Ballantyne, J. - Lett, William Pittman
    Type: Article
    In: The Ottawa naturalist
    Volume: 4
    Issue: 5
    Date: 1890-08
    Page Range: 92--93
    Publication Info: Ottawa, Ottawa Field-Naturalists' Club,