Columbia subject headings:
Arctic regions--Discovery and exploration--British.
Back, George, 1796-1878.
Northwest, Canadian.
Scientific expeditions--Arctic regions.
Harvard subject headings:
Arctic regions--Discovery and exploration--British.
Back, George, 1796-1878
Northwest, Canadian--Discovery and exploration--British.
Scientific expeditions--Arctic regions
Princeton subject headings:
Arctic regions--Discovery and exploration.
Back, George, 1796-1878.
Northwest, Canadian--Description and travel.
Scientific expeditions--Arctic regions.