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By: Wragg, L. E.Type: ArticleIn: The Canadian field-naturalistVolume: 67Series:Issue: 4Date: 1953Page Range: 174--177Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Wragg, L. E.Type: ArticleIn: The Canadian field-naturalistVolume: 68Series:Issue: 1Date: 1954Page Range: 11--13Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Wragg, L. E.Type: ArticleIn: The Canadian field-naturalistVolume: 69Series:Issue: 1Date: 1955Page Range: 9--11Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: