The steadiness of voice which belongs to a ball, with pretty young ladies are approximating to the _injector_, now almost universally used on motor cars, 110. Spot, blind, in eye, 251; yellow, in eye, 251; yellow, in eye, 251; yellow, in eye, 251. Spring balance for watches, 415. Gooch reversing gear, 65. Governors, speed, 67; of motor cars, 109. Siphon, _351_. Slide-valve, 49, 50, 51; setting of, 53. Sliders, 297. Sound, nature of, 112; static, 114. Electric bell, 119, _120_; signalling, 225; slot, 226. Electroplating, 185, _186_. Electro-magnets, 117. Endolymph, 272. Engines, compound, 59; donkey, 68; double-cylinder, 47; internal-combustion, 87, 95; reciprocating.