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By: Ball, K. E.Type: ArticleIn: The Canadian field-naturalistVolume: 64Series:Issue: 6Date: 1950Page Range: 201--207Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Ball, K. E.Type: ArticleIn: The Canadian field-naturalistVolume: 66Series:Issue: 3Date: 1952Page Range: 71--81Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: