—, Galvanic battery, E. de Butts, viii, 271.f

— — of carbon, xxxix, 132.

— — —, B. Silliman, Jr., xliii, 393; xliv, 180.f

— —, Crosse's, some account of, xxxii, 372.

— —, De la Rive's, v, 395.

— —, dry, xii, 195; xvii, 162.

— —, Grove's, xxxviii, 116.

— —, —, experiments with, S. F. B. Morse, xlv, 390.f

— —, R. Hare's new modifications of, iii, 105.f

— —, —, calorimotor, i, 413; v, 94, 357, 364; vi, 337; xxxii, 284.f