And fusee, _414_. Durability of motor-car engine, 96. D-valve, 67. Dynamo, alternating, 164, 174; brushes, _172_; compound, 174; continuous-current, 165; multipolar, 169; series wound, _173_; simple, 161, _162_. Ear, the, _271_, _273_; a good, 274, 307; sensitiveness of, 275. Eccentric, _52_, 53; setting of, 53. Edison, Thomas, 310. Edison-Bell phonograph.