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Esquisse géologique du Canada, suivie d'un catalogue descriptif de la collection de cartes et coupes géologiques, livres
imprimés, roches, fossiles et minéraux économiques envoyée à l'Exposition universelle de 1867; Logan, W E; Murray, A; Hunt, T S;
Billings, E ; Geological Survey of Canada. Geological Survey of Canada, Separate Report no. 402, 1867, 72 pages,
https://doi.org/10.4095/216060 
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