ELE 
Electric spark from magnets, J. 
Henry, xxii, 403. 
eA Emmet: 
xxiv, '78.f 
syringe, C. G. Page, xxvi, 
110. 
ELeEcrRIcirty. 
, animal, mode of receiving a 
shock from a cat, viii, 391. 
; , peculiar case in a wo- 
man, xxxill, 394; xl, 386. 
¥ , of fish on the coast of 
Cape Cod, D. H. Storer, xliv, 
213. 
——, ——, Matteucci on, xxi, 156. 
: , observations on, Lina- 
rt and Matteucci, xxxti, 198; 
xlix, 388. 
, atmospheric, water decom- 
posed by, xx, 179; xxi, 368. 
‘ , observations on, M. 
Matteucci, xxx, 376. 
, blasting by means of, xvi, 
372.f 
, capillary attraction influen- 
ced by, J. W. Draper, xxvi, 399. 
» —— — productive of, ix, 
193. 
——, conducting power of liquid 
gases, xxi, 374. 
——, of the metals, xil, 
199. 
—, — of steam, xxvii, 
206. 
, —— —— of the solar rays, 
xvii, 391. 
, the conductibility of, by li- 
quids, increased by adding water, 
xvil, 165. 
by contact, 
159. 
, decomposition of water by at- 
mospheric and common, xxi, 368. 
, discharge, lateral, J. Henry, 
xxxiv, 16.f 
, effects of, on vegetation, M. 
Baric, xxxi, 160. 
, fluids of, one or two, R. Hare, 
vii, 103.£ 
Karsten, xxxi, 
(i) 
EXLECTRICITY. 
, generation of, by the elec- 
trical machine, G. W. Rains, 
xlix, 93.£ 
, evaporation in gilding, pro- 
ducing, v, 198. 
, induced currents of different 
orders produced by, J. Henry, 
XXXVIll, 232.f 
, influence of, on the process 
of beer making, xxxiv, 8. 
‘ , on capillary attraction, 
xxvi, 399. 
: , on odors, xv, 394. 
, on phosphorescence, 
ils on Pearsall, xxi, 378. 
, light acting on an iodized 
plate, producing, xlvii, 190. 
, machinery producing, 
Smith, xxxix, 134. 
——, medical, J. Hall, iii, 166. 
, motion producing and motion 
produced by, J. Locke, xxxiv, 
1380. 
——, needle deflected by, xii, 199. 
A 
» ——, ibid, C.G. Page, xxxvi, 
308. 
—— of peroxide of manganese, 
Sxly/ 93 
, ponderable substances trans- 
ferred by, A. Fusinieri, xxii, 
355. 
, principles of, in 1838, A. de 
la Rive, xxvi, 175. 
produced by the action of 
light on an iodized silver plate, 
xlvil, 190. 
—— by machinery, A. Smith, 
0-9-0, bt Io 
—w— bya separation of parts, 
or fracture, vill, 379. 
—— from steam, xl, 382. 
—— of the tourmaline, xvi, 390. 
—— retained in a vacuum, xxix, 
354. 
, science of, in 1833, A. de la 
Rive, xxvi, 175. 
, theory of, J. D. Whelpley, 
xlvill, 364. 
> ——, Van Marum on, iii, 
385. 
and magnetism, connection 
between, iii, 386.f 
