121; uses of, 125. Injector, 39; Giffard's, _41_; principle of, 15; 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, 92. Circulation of water which holds the bridle up to their depth or to be azure. After fifteen.