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Encyclopedia Arctica
Volume 3: Figures
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Volume 3: Zoology (Excluding Birds)
Animal Population Cycles
Arctic fox returns and lemming reports for Canada.
Colored fox returns showing four-year and ten-year cycles.
Lynx fur returns of the Northern Department, Hudson’s Bay Co., 1821-1913, and of equivalent area 1915-34
Fig. 1. The natural history of the trichin worm.
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