The wonders of modern mechanismA résumé of recent progress in mechanical, physical, and engineering science . ll for some years. Duringthe first two years endless cables were used for drawing thecars, but later were abandoned for small steam-locomotives,the Forney engines being the type used to-day. In time theNew York public came to like the elevated cars, and theNinth Avenue road was several times extended. In 1878the Sixth Avenue and Third Avenue elevated roads wereopened, and in 1887 the Second Avenue. These roadsnow carry nearly half a million people twice a day—thatis to say, they bring
The wonders of modern mechanismA résumé of recent progress in mechanical, physical, and engineering science . ll for some years. Duringthe first two years endless cables were used for drawing thecars, but later were abandoned for small steam-locomotives,the Forney engines being the type used to-day. In time theNew York public came to like the elevated cars, and theNinth Avenue road was several times extended. In 1878the Sixth Avenue and Third Avenue elevated roads wereopened, and in 1887 the Second Avenue. These roadsnow carry nearly half a million people twice a day—thatis to say, they bring that numl^er of people to businessevery week-day morning and carry them back at maintain thirty-six miles of double track road, whichcost a total of thirty-five million dollars. New York also maintains cable-roads on One Hundredand Twenty-fiflh Street, Broadway, and on Third Avenue. 198 WONDERS OF MODERN MECHANISM. It is thought that these lines will substitute an electricwire in the conduit for the cable in the near future, thatsystem having been much perfected within a few years. Fi(i. CABLE-DRIVESG PLANT, AS DESIGNED BY ROBERT POOLE & SON. In fact, a successful conduit-electric system has been inoperation in Buda-Pesth since 1889, being built on theplans of Siemens and Halske. Americans seem not tohave been so successful, but they can now profit by copy-ing the good points of the Hungarian line. For furtherinformation on this point see the chapter on conduit rail-ways. The other lines of Xew York City are operated by LIGHT-TRAFFIC RAILWAY SYSTEMS. 199 horses, though it is rumored that oue or more of them willchange to the storage-battery in the near future. The comliined means of transit above described beinginadequate to meet the demands of the travelling public, itis now proposed to build a system of underground roads,and two routes are projected with every prospect of beingbuilt in the near future. The motive power has not as yetbeen decided upon, but
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