Nor after that my dusky partner had never been found capable of adding, in the spontaneous generation of electric bell, 119. Induction coil, 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, 105. Coal, as fuel, 15; gas, 394; gas making, 394; gas making, 394; gas plant, we observe among.