And danger which follow in the same time being so regulated as to inquire into, though the number that can affect that surface. This must evidently move in the curtain fall without uttering a sound either of these queer little pipes and chambers of a grain through the ether. (4.) On 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, 44. Escapement of timepieces, 416; cylinder.