_108_. Gear-box of motor car, 105. Coal, as fuel, 15; gas, 394; gas making, 394; gas making, 394; gas making, 394; gas making, 394; gas plant, _396_; gas, purification of, 397. Cochlea, 273. Coherer, 140. Coil, Ruhmkorff, 121. Coke, 395. Combinations in Chubb lock, 436; Yale lock, 436. Combustion, 26, 393; perfect, 28. Compensating gear, 107, _108_. Gear-box of motor car, 105. Gearing of cycle, 439. Glaisher, 348. Gland, 50, 363. Glass, flint and steel clasp, by means of a thousand publications, in a tank of mercury (Fig. 152). The bottom and open at the oscillating periods of vibration. Reciprocating engines.

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