"Tulluahiu, who lost a leg during an encounter with a polar bear, wears a wooden limb fashioned for him by the carpenter of the Victory. The artificial leg rendered Tulluahiu 'serviceable once more to himself and his community,' noted Ross, and 'raised us higher in the estimation of this people than all the wonders we had shown them.'" (125)
The illustration is a watercolor by Captain John Ross, whose ship (the Victory) and its crew became trapped in ice on the coast of the Boothia Peninsula (the northernmost tip of the North American mainland) in 1829. The volume's picture credits say the originals are at the Scott Polar Research Institute in Cambridge, England.
There's a recent book on the Ross expedition's time on the Boothia Peninsula: Ray Edinger, Fury Beach: The Four-Year Odyssey of Captain John Ross and the Victory (New York: Berkley 2003). It's reviewed here.