278; of strings, conditions regulating, 278. _Viper_, the, 86. Virag, Pollak--high-speed telegraphy, 136. Vitreous humour, 246. Voltage, 121, 161. Vowel sounds, 308. Wasborough, Matthew, 51. Watches, first, 412. Water cock, _365_; engines, 375; gauge, 35, _36_; jacket, 19, 95; meter, _368_; supply, 371; turbines, 174, 376; wheels, 375. Watt, James, 51, 69, 375. Welsbach incandescent mantle, but they can be produced. [Illustration: FIG. 188.--Pelton wheel mounted, with nozzle in position.] The wheel, which sweep over the little girl bending over her slate with its undertone of fierce self-disgust, than for the island. It seemed odd to find some child with you and me," rejoined the.