49 
Flint, R. F. and E. S. Deevey (1951). Radiocarbon dating of late- 
Pleistocene events. Am. J. Sci. 249: 257-300. 
Gardner, G. (1937). Liste annot£e des esp&ces de pt6ridophytes, de 
phan€rogames et d’algues rScoltees sur la C6te du Labrador, a 
la Baie d’Hudson et dans le Manitoba Nord, en 1930 et 1933. 
Bull. Soc. Bot. Fr. 84: 1-33. 
Geographic Board of Canada (1933). Place-names of Manitoba. King’s 
Printer, Ottawa. 
Giddings, J. L. (1941). Dendrochronology in northern Alaska. Univ. of 
Arizona, Bull. 12 (4). 
(1947). Mackenzie River Delta chronology. Tree Ring Bull. 13. 
Gillett, J. M. (1948). Botanical associations of the northern biting flies, 
Appendix E, report on the field work at Fort Churchill, Manitoba, 
1948. Defence Research Board, Canada, Rept No. D. R. 20: 
E1-E26. 
Gleason, H. A. (1952). The new Britton and Brown illustrated flora of 
the northeastern United States and adjacent Canada. The New 
York Botanical Garden (3 vols.). 
GrOntved, J. (1936). Vascular plants from arctic North America. Fifth 
Thule Exped. Rept., 1921-24, 2: 1-93. 
Gussow, W. C. (1933). Contribution to the knowledge of the flora of 
northern Manitoba and the North-western Territories, Dominion of 
Canada. Can. Field-Nat. 47: 116-119. 
Gutenberg, B. (1942). Is the land around Hudson Bay at present rising? 
Am. J. Sci. 240: 147-149. 
Halliday, W. E. D. (1937). A forest classification for Canada. Dept, of 
Mines and Resources, Canada, Forest Service, Bull. 89: 1-50. 
(See also the revised map (1957) and revised text (1958). 
Hare, F. K. (1950). Climate and zonal divisions of the boreal forest 
formation in eastern Canada. Geog. Rev. 40: 615-635. 
(1951). Some climatological problems of the Arctic and sub-Arctic, 
In Compendium of Meteorology, Boston, Mass,, pp. 952-964. 
Harrington, Lyn (1951). Manitoba Roundabout. The Ryerson Press, 
Toronto, Ontario. 
Hult6n, E. (1958). The amphi-Atlantic plants and their phytogeograph- 
ical connections. Kungl. Svenska Vetensk. Handl. 7: 1-340. 
Hustich, L (1949). Phytogeographical regions of Labrador. Arctic 2: 
36-42. 
(1953). The boreal limits of conifers. Arctic 6: 149-162. 
Innis, H, A. (1930). The fur trade in Canada. Yale University Press, 
New Haven, Conn., pp. 1-444. 
Jenness, J. L. (1949). Permafrost in Canada. Arctic 2: 13=27. 
Johansen, F. (1933). Description of the country and vegetation at Port 
Churchill, Man., in arctic Canada. Nyt. Mag, Naturvid. 73: 221-257. 
Johnston, W. A, (1930). Frozen ground in the glaciated parts of northern 
Canada. Roy. Soc. Canada, Trans., Sect, IV, pp. 31=40. 
