861.
----, _its distribution on conductors_, 1368.
----, ---- _influenced by_ form, 1302, 1374.
----, ---- ---- distance, 1303, 1364, 1371.
----, ---- ---- air's pressure, 1375.
----, relation of a vacuum to, 1613.
----, dissimulated, 1684.
----, common and voltaic, measured, 361, 860.
----, _its definite_ decomposing action, 329, 377, 783, 1621.
----, ---- heating action, 1625.
----, ---- magnetic action, 216, 366.
----, animal, its characters, 351.
----, magneto-, its characters, 343.
----, ordinary, its characters, 284.
----, thermo-, its characters, 349.
----, voltaic, its characters, 268.
_Electricity from magnetism_, 27, 36, 57, 83, 135, 140.
----, _on magnetisation of soft iron by_ currents, 27, 34, 57, 113.
---- ---- magnets, 36, 44.
----, _employing_ permanent magnets, 39, 84, 112.
----, ---- terrestrial magnetic force, 140, 150, 161.
----, ---- _moving conductors_, 55, 83, 132, 139, 149, 161, 171.
----, ---- ---- essential condition, 217.
---- _by revolving plate_, 83, 149, 240.
---- ---- a constant source of electricity, 89, 90, 154.
---- ----, law of evolution, 114.
---- ----, direction of the current evolved, 91, 99, 110, 116, 117.
---- ----, course of the currents in the plate, 123, 150.
---- by a revolving globe, 137, 160.
---- by plates, 94, 101.
---- by a wire, 49, 55, 109, 112, 137.
----, conductors and magnet may move together, 218.
----, _current produced_ in a single wire, 49, 55, 170.
----, ---- a ready source of electricity, 46, _note_.
----, ---- momentary, 28, 30, 47.
----, ---- permanent, 89, 154.
----, ---- deflects galvanometer, 30, 39, 46.
----, ---- makes magnets, 34.
----, ----, shock of, 56.
----, ----, spark of, 32.
----, ---- traverses fluids, 23, 33.
----, ----, its direction, 30, 38, 41, 52, 53, 54, 78, 91, 99, 114, 142,
166, 220, 222.
----, effect of approximation and recession, 18, 39, 50.
----, the essential condition, 217.
----, general expression of the effects, 256.
----, from magnets alone, 220.
_Electricity of the voltaic pile_, 875.
---- _its source_, 875.
---- ---- not metallic contact, 887, 915.
---- ---- is in chemical action, 879, 916, 919, 1738, 1741.
_Electro-chemical decomposition_, 450, 661.
----, nomenclature, 661.
----, general conditions of, 669.
----, new conditions of, 453,
----, influence of water in, 472.
----, primary and secondary results, 742.
----, definite, 732, 783.
----, theory of, 477.
----. _See_ also Decomposition, electrochem
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