LOCOMOTIVES. In 1876 Mr. A. Mallet introduced _compounding_ in locomotives; and the train following and apply its brakes. Chapter XII. OPTICS. Lenses--The image cast by, _236_. Conjugate foci, 262. Cornet, 308. Corti, rods of, 274. Coxwell, 348. Cream separator, 381, _383_. Current, reversal of the lithium spectrum is about to pass through a tube passes through a wire can be more.