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Mercators projection with the great circle shortest sailing or air lines, illustrating the directness and capacity of the River St. Lawrence from Lake Erie to the Atlantic, as a means of communication ... [View full title] between Europe and the commercial centre of the Great West. Showing the extension of the Northern Pacific Railway route through Canada, to the nearest Atlantic seaport at Montreal. [cartographic material] / Prepared for the Canadian Commissioners of the Paris exhibition by Thos. C. Keefer, C.E., Montreal 1855 ; C. Mathews Lith, Montreal. Johnson's profile of the northern route for the Pacific railroad from Lake Michigan to Vancouver Island shewing relative summits on the route [cartographic material]