. The Canadian field-naturalist. 20-30m 12- 30-40m. 15-19 20-24 25 29 30-34 35 39 40 44 >45 45 Age class (years) Age class (years) 40-50m. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club

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Keywords: ., bookauthorottawafieldnaturalistsclub, bookcentury1900, bookleafn