Narrative of a Second Expedition to the Shores of the Polar Sea, in the Years 1825, 1826, and 1827 — LIGNITE FORMATION.—MACKENZIE'S RIVER.

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Narrative of a Second Expedition to the Shores of the Polar Sea, in the Years 1825, 1826, and 1827 LIGNITE FORMATION.—MACKENZIE'S RIVER. · ch 31/49

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