Note 233 — WISCONSIN TRADE IN 1820.[221]
Reading edition
For the value of the beaver at different periods and places consult indexes, under "beaver," in N.Y. Col. Docs,; Bancroft, Northwest Coast; Weeden, Economic and Social Hist. New Eng.; and see Morgan, American Beaver, 243-4; Henry, Travels, 192; 2 Penna. Archives, VI., 18; Servent, in Paris Ex. Univ. 1867, Rapports, VI., 117, 123; Proc. Wis. State Hist. Soc., 1889, p. 86.