feet from all parts of the world in length, and in the rear and in this system, the un- of these are located three loading of iron ore, by bridges, each seventy-five means of huge buckets, feet in length. The ar- traveling at a high rate of rangement of the bridges speed on bridge tramways is such… … proportion as it is loaded form, probably, the most at the ports on Lake arduous manual labor to Superior, where by means of elevated docks with be found anywhere. Only the hardiest of men can The depending leg or mast is always kept in a vertical pockets and chutes it is possible to load one of…
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