_Polunin, Nicholas._ 1949. Arctic unfolding. . . . London: 1-348, 33 pl., 3 maps. _Porsild, A. E._ 1943. Reindeer and caribou grazing in Canada. _Trans. Seventh No. Am. Wildlife Conference_: 381-390, “1942.” 1950. A biological exploration of Banks and Victoria Islands. _Arctic_ +3+ (1): 45-54, 6 fig., 1 map. 1951. Caribou in Greenland. _Arctic Circular_ +4+ (4): 52-58. (Mimeographed.) PREBLE, EDWARD A. 1902. A biological investigation of the Hudson Bay region. _U.S. Dept. Agric., No. Am. Fauna_ 22: 1-140, 13 pl., 1 map. 1908. A biological investigation of the Athabaska-Mackenzie region. _U.S. Dept. Agric., No. Am. Fauna_ 27: 1-574, 21 pl., 12 fig., 8 maps. 1926. The Mackenzie watershed; northern Hudson Bay region, upper Yukon region, and the Arctic islands. In: Victor E. Shelford (editor), Naturalist’s guide to the Americas: 115-141. Baltimore. RAE, JOHN. 1850. Narrative of an expedition to the shores of the Arctic Sea in 1846 and 47. London: viii + 248, 2 maps. 1852a. Journey from Great Bear Lake to Wollaston Land. _Jour. Royal Geog. Soc. London_ +22+: 73-82, 1 map. 1852b. Recent explorations along the south and east coast of Victoria Land. _Jour. Royal Geog. Soc. London_ +22+: 82-96, 1 map. RAND, A. L. 1948a. Mammals of the eastern Rockies and western plains of Canada. _Nat. Mus. Canada Bull._ 108: ii-vii, 1-237, 4 pl., 81 fig., 4 maps. 1948b. Mr. W. H. Bryenton’s notes on Manitoba mammals of the Herb Lake-Flin Flon area. _Canadian Field-Naturalist_ +62+ (5): 140-150. RASMUSSEN, KNUD. 1927. Across Arctic America: narrative of the Fifth Thule Expedition. New York-London: 1-388, 66 pl., 4 maps. RAUP, HUGH M. 1933. Range conditions in the Wood Buffalo Park of western Canada with notes on the history of the wood bison. _Am. Comm. Internat. Wild Life Protection, Spl. Publ._ +1+ (2): 1-52, 1 map. RAUSCH, ROBERT. 1951. Notes on the Nunamiut Eskimo and mammals of the Anaktuvuk Pass region, Brooks Range, Alaska. _Arctic_ +4+ (3): 147-195, 12 fig., 3 maps. RICHARDSON, JOHN. “1825.” Zoological appendix. No. 1. Account of the quadrupeds and birds. In: Appendix to Captain Parry’s journal of a second voyage for the discovery of a north-west passage from the Atlantic to the Pacific, performed in His Majesty’s ships Fury and Hecla, in the years 1821-22-23: 287-379. London. (“Published probably in 1827”--Preble, 1908: 536.) 1829. Fauna boreali-americana . . . . Part 1. Quadrupeds. London; xlvi + 300, 28 pl., 5 fig. 1836. Zoological remarks. In: George Back, Narrative of the Arctic Land Expedition to the mouth of the Great Fish River, and along the shores of the Arctic Ocean, in the years 1833, 1834, and 1835: 475-542. London. 1852. Arctic Searching Expedition: a journal of a boat-voyage through Rupert’s Land and the Arctic Sea, in search of the discovery ships under command of Sir John Franklin. [Ed. 2?] New York: iii-xi, 13-516, 8 fig. 1861. The polar regions. Edinburgh: ix + 400, 1 map. RIDGWAY, ROBERT.