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  1. By: Critchell-Bullock, James C.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 44
    Issue: 6
    Date: 1930-09
    Page Range: 140--145
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Critchell-Bullock, James C.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 44
    Issue: 7
    Date: 1930-10
    Page Range: 156--162
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Critchell-Bullock, James C.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 44
    Issue: 8
    Date: 1930-11
    Page Range: 187--196
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Critchell-Bullock, James C.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 44
    Issue: 9
    Date: 1930-12
    Page Range: 207--213
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  5. By: Critchell-Bullock, James C.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 45
    Issue: 1
    Date: 1931-01
    Page Range: 11--18
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  6. By: Critchell-Bullock, James C.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 45
    Issue: 2
    Date: 1931-02
    Page Range: 31--35
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  7. By: Critchell-Bullock, James C.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 44
    Issue: 3
    Date: 1930-03
    Page Range: 53--59
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  8. By: Critchell-Bullock, James C.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 44
    Issue: 4
    Date: 1930-04
    Page Range: 81--87
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  9. By: Critchell-Bullock, James C.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 44
    Issue: 5
    Date: 1930-05
    Page Range: 111--117
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  10. By: Critchell-Bullock, James C.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 39
    Issue: 8
    Date: 1925-11
    Page Range: 181--183
    Publication Info: Ottawa Ottawa Field-Naturalists' Club