HELE 
Elaine, separation of, from oils, 
xiil, 186. 
and stearine, vi, 077. 
Elasticity, an experiment on, with 
wine-glasses, xxii, 190.f 
Elaterite, or fossil caoutchouc, xl, 
215. 
Electrepeter, Clarke’s, xxxiii, 224.) 
, new form of, C. G. Page, 
xxxill, 8377.f 
, magnetic and electrotome, C. 
G. Page, xxxv, 112. 
Electric amalgam, W. R. Johnson, 
xxv, 68. 
battery, i, 292.f 
brush, R. Hare, xxxii, 277.f 
currents along the muscles 
and nerves different, xix, 180. 
in the nerves, on the 
hypothesis of, M. Matteucct, xlix, 
387. 
, course of, in electric 
discharges, W. R. Johnson, xxv, 
58. 
, effect of placing a can- 
dle between the poles, W. R. 
Johnson, xxv, 59. 
, two or more over th 
same conductor without interfer- 
ence, S. F. B. Morse, xliv, 418.4] 
and sparks from mag- 
nets, J. Henry, xxii, 408. 
, ponderable matter trans- 
ported by, xu, 383. 
discharges, lateral, J. Henry, 
xxxiv, 16.f 
discriminator, (electroscope,) 
R. Hare, xxv, 136.f 
excitement in leather by fric- 
tion, xxxvii, 197. 
, peculiar case of, in a 
woman, xxxill, 894; xl, 386. 
experiments, season favorable 
for, W. R. Johnson, xxv, 60. 
fish, on the coast of Cape Cod, 
D. H. Storer, xliv, 213. 
, Gymnotus, x1, 386. 
-——— fluids, the existence of two, 
opposed by R. Hare, vii, 103.f 
, observations on, C. G. 
Page, Xxxvi, 353. 
——— 
7 
A ELE 
‘Electric induction, decomposition of 
water by, M. Hachette, xxiv, 142. 
, currents of electricity 
from, of different orders, J. Hen- 
ry, XXXvili, 232.f 
, polarity produced by, 
XXXVI, 3. 
, R. Hare, letters on, to 
M. Faraday, xxxviii, 1,19; xli,1. 
, M. Faraday, in reply 
to R. Hare, xxxix, 108; xlii, 
291. 
| jar, on the discharge of, xxxviil, 
—— kite, for determining the elec- 
tricity of the upper currents of 
the air, J. Swaim, xxxii, 804.f 
lady, explanation of, xxxili, 
394; xl, 386. 
light, a mode of producing, 
vill, 380. 
—— machine, form and arrange- 
ment of, W. R. Johnson, xxv, 66. 
, plate, vin, 378. 
: sak: eHanes saviie 
108; xxxii, 272.f 
, communication of, with 
the earth not necessary, R. Hare, 
XXIV, 293. 
pile, theory of, xix, 375. 
shock from a cat, mode of re- 
ceiving, vill, 391. 
sound, xlix, 390. 
spark, W. R. Johnson, xxv,57. 
, length of, as affected 
by the size of the balls, W. R. 
Johnson, xxv, 60. 
, perforations by, in a 
quire of paper or card, W. R. 
Johnson, xxv, 64. 
; ibid, C. G. Page 
XXXVI, 3090. 
drawn from a_ heated 
stove, xl, 385, 386. 
, remarks onthe so-called 
positive and negative, R. Hare, 
xxxil, 275.f 
, Wheatstone’s experi- 
ment to determine whether there 
is a sensible duration to, xxvili, 
60. 
—— 
4 
