. Electric railway journal . the information necessary to issue correctorders in case it is necessary to cut the power off anysection. The present method of communication withhim has proved satisfactory, but under some conditionsmight be too slow. To improve this, it is proposed toinstall a signal-box system connected with the load dis-patchers and chief train dispatchers offices, with boxeson every station platform and between stations. Analarm rung in from any of these boxes will sound thecorresponding number on tappers and record its numberon tape, and immediately upon receiving such alarmt
. Electric railway journal . the information necessary to issue correctorders in case it is necessary to cut the power off anysection. The present method of communication withhim has proved satisfactory, but under some conditionsmight be too slow. To improve this, it is proposed toinstall a signal-box system connected with the load dis-patchers and chief train dispatchers offices, with boxeson every station platform and between stations. Analarm rung in from any of these boxes will sound thecorresponding number on tappers and record its numberon tape, and immediately upon receiving such alarmthe load dispatcher will have all power cut off from thesection or sections involved. Miscellaneous Safeguards The company intends to equip all emergency exitsand telephone stations with a significantly shaped globeof a blue color, and to install additional fire extin-guishers at such stations in subways and tunnels. Thecompany also intends to equip all ventilating fans foroperation from two independent sources of power con-. THIRD-RAIL CLEARANCE MANHATTAN ELEVATED RAILWAY DESIGN, 1902 trollable from station platforms, with automatic trans-fer of feed in case of the failure of either. The com-pany does not feel warranted in changing the generaldirection of air movement in subways and tunnels, sincethe original construction by the Boston Transit Com-mission provided a specific manner in which ventilationshould be carried out. The company also plans to fire-proof the Boylston Street subway lighting switchboardroom by installing a reinforced concrete floor and steelfurniture, and, by isolating the local Edison trans-formers, will provide outside ventilation. The removalof return feeders from conduits containing power cables,separation of telephone, signal and lighting cables frompower cables, and other improvements are under way orimmediately in hand. It is the intention to purchase wholly fireproof carsin the future for underground service, but the companydoes not consider it poss
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