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Scientific American, Vol. 62, No. 7 (February 1890) (1890)

leaf 7

An illustration from Scientific American, Vol. 62, No. 7 (February 1890), 1890, leaf 7
s 18 Total 16,455 feet 2 inches are at the falls. The only channel now secured flat springs, c, carrying at opposite ends pieces navigable is, for the first 35 miles below that place, so of iron, forming armatures. The normal position of This is but the statement of the commerce of a sin- the… … no more affected than it of the quantity of each va- A NEW ELECTRIC CONDUIT FOR STREET CARS. would be by contact with riety produced in the State the paving stones. As the during the season of 1889. car passes along, the armatures carried by the springs The following figures are taken from their…

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