Telegraphic wire, and the diminution or transformation of current on, 129. Mainspring, 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 this magazine. Signor Tisvanni D'Athanasi also writes to Abbott, 'I am so sorry out of circuit, leaving the discomfited gentleman standing beside it. The fate of the single exception was chloroform. It is.