Report on the geology and resources of the region in the vicinity of the forty-ninth parallel, from the Lake of the Woods to the Rocky Mountains Dawson, George Mercer, 1849-1901 creator British North American Boundary Commission. contributor text book Montreal Dawson 1875 1875
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ENG Britton's Bibliography, 1890. At head of title: British North American Boundary Commission. Canada Geology Paleontology Plants QE185 .D38 https://www.biodiversitylibrary.org/bibliography/62419 985345 06000803 10.5962/bhl.title.62419