Tyrrell, J. B. Minerals and Ores of Northern Canada. Jour. Can. Min. Inst., vol. xi., 1908, pp. 348-365.
Tyrrell, J. W. Across the Sub-Arctics of Canada. A Journey of 3200 miles by canoe and snowshoe through the Barren Lands. Toronto, 1897. 8vo. Map and illustrations, 280.
Tyrrell, J. W. Report on an Exploratory Survey between Great Slave Lake and Hudson Bay. Ottawa, 1901. Annual Report, Dept. of Interior (Canada), App. 26, Part III. 23 maps and plates, 60.
Umfreville, Edward. The Present State of Hudson's Bay, containing a full description of that settlement, and the adjacent country; and likewise of the Fur Trade. London, 1790. 12mo. VII., 230.
Wales, William. Journal of a voyage made by order of the Royal Society, to Churchill River, on the North-West coast of Hudson's Bay; of Thirteen months residence in that country; and of the voyage back to England; in the years 1768 and 1769. Phil. Trans., vol. ix., for the year 1770. London, 1771, pp. 100-136.
Whitney, Caspar. On Snow-shoes to the Barren Grounds. New York, 1896. 8vo. Maps and illustrations. x., 324.
Willson, Beckles. The Great Company. London, 1899. 8vo. Maps and plates. XXII., 541.
For fuller bibliographies of Explorations in Hudson Bay and the North-West Territories of Canada, see Low's "Cruise of the Neptune," and Burpee's "Search for the Western Sea."