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LAND MAMMALS IN THE WESTERN HEMISPHERE
Fig. 72.—Boreal Mammals. A. Black-footed Ferret (Mustela nigripes). B. Otter (Lutra canadensis). C. Jumping Mouse (Zapus hudsonius).—A and B by permission of the N.Y. Zoölog. Soc. C, by permission of W. S. Berridge, London.
