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Sketch of the geology and palaeontology of the valley of Mackenzie River
Sketch of the geology and palaeontology of the valley of Mackenzie River
Geology and palaeontology of the valley of Mackenzie River and Remarks on the geology of the valley of Mackenzie River: with figures and descriptions of fossils from that region, in the Museum of the Smithsonian Institution, chiefly collected by the late Robert Kenniscott, Esq