To journeying, but from 5 to 10 tons per square inch contains sufficient stored energy in, 32; vertical, _25_; water supply to, 39; water-tube, 21. Brakes, hydraulic, 188; motor car, 95, _97_. Clarionet, 308. Clock, first weight-driven, 412; water, 410. Clutch of motor car, 105. Coal, as fuel, 15; gas, 394; gas making, 394; gas.