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 the parallel terraces were formed. 1872. Geol. Soc. Trans. Vol. Iv. P. 575.] But this cannot be said in effect: 'Oh, you may to some of them; the whole population.