——. See Plates of platina. Coal
gas, brush in, 1460. ——, dark
discharge in, 1556. ——, positive
and negative brush in, 1476. ——,
positive and negative discharge in, 1515. ——,
spark in, 1422. Colladon on magnetic force of
common electricity, 289. Collectors, magneto-electric,
86. Combination effected by metals, 564, 608.
—— solids, 564, 618. ——
poles of platina, 566. —— platina,
564, 568, 571, 590, 630. —— ——,
as plates, 569. —— ——,
as sponge, 609, 636. —— ——,
cause of, 590, 616, 625, 656. ——
——, how, 630. ——
——, interferences with, 638, 652,
655. —— —— retarded
by olefiant gas, 640. —— ——
—— carbonic oxide, 645, 652. ——
—— —— sulphuret
of carbon, 650. —— ——
—— ether, 651. ——
—— —— other substances,
649, 653, 654. Comparison of voltaic batteries,
1126, 1146. Conditions, general, of voltaic
decomposition, 669. ——, new, of
electro-chemical decomposition, 453. Conducting
power measured by a magnet, 216. ——
of solid electrolytes, 419. —— of
water, constant, 984. Conduction, 418, 1320.
——, its nature, 1320, 1326, 1611.
——, of two kinds, 987. ——,
preceded by induction, 1329, 1332, 1338. ——
and insulation, cases of the same kind, 1320, 1326,
1336, 1338, 1561. ——, its relation
to the intensity of the current conducted, 419. ——
common to all bodies, 444, 449. ——
by a vacuum, 1613. —— by lac, 1234,
1324. —— by sulphur, 1241, 1328.
—— by glass, 1239, 1324. ——
by spermaceti, 1240, 1323. —— by
gases, 1336. ——, slow, 1233, 1245,
1328. —— affected by temperature,
445, 1339. —— by metals diminished
by heat, 432, 445. —— increased
by heat, 432, 441, 445. —— of electricity
and heat, relation of, 416. ——,
simple, can occur in electrolytes, 967, 983.
——, —— with very
feeble currents, 970. —— by electrolytes
without decomposition, 968, 1017, 1032. ——
and decomposition associated in electrolytes, 413,
676, 854. —— facilitated in electrolytes,
1355. —— by water bad, 1159.
—— —— improved
by dissolved bodies, 984, 1355. ——,
electrolytic, stopped, 380, 1358, 1705. ——
of currents stopped by ice, 381. ——
conferred by liquefaction, 394, 410. ——
taken away by solidification, 394, 1705. ——
—— why, 910, 1705. ——,
new law of, 380, 394, 410. ——,
——, supposed exception to, 691, 1340.
——, general results as to, 443.
Conductive discharge, 1320. Conductors, electrolytic,
474. ——, magneto-electric, 86.
——, their nature does not affect
the electric brush, 1454. ——, size
of, affects discharge, 1372. ——,
form of, affects discharge, 1374, 1425. ——,
distribution of electricity on, 1368. ——,
——, affected by form, 1374.
——, ——, ——
distance, 1364, 1371. ——, ——,
—— air pressure, 1375. ——,
——, irregular with equal pressure,
1378. Constancy of electric current, 1618. Constitution
of electrolytes as to proportions, 679, 697, 830,
1708. —— liquidity, 394, 823. Contact
of metals not necessary for electrolyzation, 879.