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Scientific American, Vol. 51, No. 14 (1884) (1884)

leaf 7

An illustration from Scientific American, Vol. 51, No. 14 (1884), 1884, leaf 7
using lating to traversing the boulevard. It bas been contended The cleaning device is inserted in the pipe, where it is it. In the course of several epidemics in which miik has that this aerial road is impracticable because it will injure pushed forward by the flowing liquid, the projecting wires… … are not the men who growl if they are required ELEVATED RAILWAY, PARIS. THE METROPOLITAN to attend to some duty a few minutes after the whistle has sounded. They are the men of the pipe. Should the wires come in contact with a de- It goes without saying that it scarcely seems possible to usually…

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