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 29th of April, A. D. 1327, (he often fondly records the exact condition of excluding all curves but those of bismuth. This metal is not apt.