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  1. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 48
    Issue: 5
    Date: 1934-05
    Page Range: 82--82
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 36
    Issue: 5
    Date: 1922-05
    Page Range: 99--99
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 36
    Issue: 5
    Date: 1922-05
    Page Range: 99--99
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 38
    Issue: 6
    Date: 1924-05
    Page Range: 120--120
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  5. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 36
    Issue: 3
    Date: 1922-03
    Page Range: 60--60
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  6. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 36
    Issue: 3
    Date: 1922-03
    Page Range: 60--60
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  7. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 37
    Issue: 6
    Date: 1923-09
    Page Range: 118--118
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  8. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 37
    Issue: 5
    Date: 1923-05
    Page Range: 96--96
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  9. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 36
    Issue: 3
    Date: 1922-03
    Page Range: 60--60
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  10. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 36
    Issue: 3
    Date: 1922-03
    Page Range: 60--60
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  11. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 36
    Issue: 5
    Date: 1922-05
    Page Range: 99--99
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  12. By: Johnson, C. E.
    Type: Article
    In: The Ottawa naturalist
    Volume: 32
    Issue: 1
    Date: 1918-04
    Page Range: 6--6
    Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
  13. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 37
    Issue: 4
    Date: 1923-04
    Page Range: 77--77
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  14. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 36
    Issue: 5
    Date: 1922-05
    Page Range: 100--100
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  15. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 38
    Issue: 7
    Date: 1924-09
    Page Range: 137--137
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  16. By: Johnson, C. E. - Cheverie, J. Charles
    Type: Article
    In: The Canadian field-naturalist
    Volume: 102
    Issue: 3
    Date: 1988
    Page Range: 508--514
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  17. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 36
    Issue: 5
    Date: 1922-05
    Page Range: 100--100
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  18. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 38
    Issue: 7
    Date: 1924-09
    Page Range: 137--137
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  19. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 37
    Issue: 5
    Date: 1923-05
    Page Range: 97--97
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  20. By: Johnson, C. E.
    Type: Article
    In: The Ottawa naturalist
    Volume: 32
    Issue: 3
    Date: 1918-09
    Page Range: 54--54
    Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
  21. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 36
    Issue: 5
    Date: 1922-05
    Page Range: 100--100
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  22. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 59
    Issue: 1
    Date: 1945
    Page Range: 46--46
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  23. By: Johnson, C. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 37
    Issue: 5
    Date: 1923-05
    Page Range: 97--97
    Publication Info: Ottawa Ottawa Field-Naturalists' Club