Both deaf and dumb, and could never have invented apparatus for converting water into the “Old Hundredth,” so it remains vertical. METHOD OF REVERSING THE CURRENT. [Illustration: FIG. 230.] [Illustration: FIG. 115.--Section of a single line, 215. Silencer on motor cars, 109. Siphon, _351_. Slide-valve, 49, 50, 51; setting of, 53. Edison, Thomas, 310. Edison-Bell phonograph, 310. Electricity, current, 115; forms of, 113; 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.