perfect, 28. Compensating gear, 107, 108 . Compound engines, 59; arrangement of, 61; invention of, 59. Compound locomotives, 62. Compound microscope, 261. Condenser, marine, 71, 72 ; of Ruhmkorff coil, 123. Conduit, 176. Convex lens, image cast by, 236 . Conjugate foci, 262. Cornet, 308. Corti, rods of, 274. Coxwell, 348. Cream separator, 381, 383 . Current, reversal of electric, 130 , 131; transformation of, 124. Cushioning of steam, 55. Cycle, gearing of, 439. Cylinder, hydraulic press, 363 ; steam, 49 . Danes, 382. Dead point, 47. De Brouwer stoker, 401. Detector in Chubb lock, 435.
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INDEX.
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