The Maritime History of the Great Lakes
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Subject:  Steamboats  Creative Commons Rights:  Sort by:  Relevance
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The First Generation of Marine Engines in Central Canadian Steamers, 1809-1837 
Web site/pageNewspapersText  Apr 1997  ... of the problems with the massive low pressure cylinders stemmed from the common assumption that they needed to be kept vertical. Lay the apparatus on its side, founders reasoned, and the heavy piston would steadily wear away the lower wall of the cylinder until a vacuum could not be produced--no vacuum, no motion...
The Frontenac: A Reappraisal 
Web site/pageText  1987  ...This article appears on the 'net essentially as it originally appeared in FreshWater, vol. 2, no. 1 (Summer 1987): 28-39. A few of the notes have been altered to reflect the change of name of the National Archives of Canada (NAC) from the Public Archives of Canada (PAC), and the subsequent...

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