The Daily soliphone., 1902-01-03

the queSttons 0f tunnellnG under the streets and rivers. Elevated rail- roads and surface electric lines are regarded nowadays IS having reached about the limit of their de- .velcpment, and the universal opinion among engineers is thatall future ad- { vance in the facilities of passenger traffic through the city and into the suburbs must be in the line of under ground roads.
 The project of the Pennsylvania to tunnel under the North River from New Jersey is the latest topic of in- terest in engineering circles, as we'll as to the travelling public in gen- .eral. Tie bridge scheme has been abandoned, probably for all time. At cost of between $15 1000, 900 and $20, 0O0, 900 the tunnel is to be built within three years, if present plans are carried out, and the company proposes to burrow so deep under the surface of both the city streets and the river bottom that no subway ever planned for urban traffic in future will be interfered with. though the city decide to have undergroud roads on every avenue from one side to the other. These subways, which will undoubtedly be built some day, can be excavated to run over the top of Pennsylvania's s line, which will be about 100 feet below the street level.
 No station existing at present is as large as the subserranean ter- minal stopping place of the PeHn- sylvania is to be. The site is the block between 32nd and 33rd streets at Seventh Avenue. The size of the station will be l5OO by 51O feet, and there will be twenty tracks. Bag gage rooms are to be equipped with the most modern convenienccs, and enormous elevators, capable of hold ing several scores of persons, will take patrons of the road down from the streets.
 While the Pennsylvania's tunnel from Jersey will end at the great station, the Long Island Railroad s tunnel from the other side of the East River will also have it's ter minal there. after traversing 33rd Street at depth sufficient to dodge the existing subway and the line of all similar roads that may be pro- jected in time to come. The Long Island, as is we'll known, is practice ally an adjunct of the Pennsylvania. So to all intents and purposes there will be single company that can tffer it's patrons passage from the far corners of the Pennsylvania and the west to the extreme end of Long Island on the east, without the incon- veniences of the old ferries across the north, or Hudson, River between Jersey City and New York.
 So numerous will be the practical results of the new tunnel that it would take a volume to catalogue them and a prophetic mind even to guess at them. Hitherto the steam ship companies have had their ter minals in and about New York, which is now reached by all the great eastern railroads, either by ferries or directly. It has been pointed out that, if these companies should establish their docks at Mon- tauk Point, the easterly end of Long Island Railroad, but to reach that roads nearest terminal the most dilapidated and dirtiest of ferries must be patronized. With chain of tunnels, completing fast con- nectious with the Long Island, the Pennsylvania can send it's passengers to Montauk as easily as to New York.
 WIRELESS TELEGRAPAY.
 Prof. M. I. Pupin, the famous electrician of Colum bia University and Thomas A. Edison, as we'll as