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By: Downing, Stuart C.Type: ArticleIn: The Canadian field-naturalistVolume: 54Series:Issue: 7Date: 1940-10Page Range: 109--110Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Downing, Stuart C.Type: ArticleIn: The Canadian field-naturalistVolume: 60Series:Issue: 2Date: 1946Page Range: 45--46Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: