The Great Lakes: A Specialized Trade |
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21 minutes aggregating aids American Association broadcast Buffalo bulk freighters bushels per hour Canadian fleet Canadian ports Canadian ships Canadian vessels candlepower cargo coal commerce cooperation deck Detroit Detroit River dispatch distributed docks equipped established Fleet Engineers freight full season Government gross tons handling harbor of refuge head of Lake iron Lake Carriers Lake Erie ports Lake Huron Lake Michi Lake Michigan Lake Ontario Lake ships Lake Superior Lake Trade Lake vessels Lawrence River licenses load lines locks and canals major Marys River ment miles movement Navigation Committee nearly ocean ships Ogdensburg open lake operated personal injury Port Facilities Port Huron port on Lake radio radiobeacons raise of grade relations with personnel River connecting lakes safe navigation safety Sault Ste seamen ships engaged shore square miles Straits of Mackinac Superior and Huron tons per hour traffic United States vessels weather conditions Welland Ship Canal