mL Ee Th 
ELEcTRICITY. 
Galvanic deflagrator, improved 
formof, M. Faraday, xxxii,170. 
experiments by A. Crosse, 
producing crystals, and, as sup- 
posed, insects, XXxv, 125. 
by R. Hare, viii, 145.' 
with grasshopper’s| 
legs, J. W. Bailey, xxxi, 292.! 
ignition of gunpowder, R. 
Hare, xxxvii, 269. 
induction, J. P. Emmet, 
xxvi, 23.f 
lamp, an improvement in, 
by Dr. J. Cutbush, ii, 332. 
light,transmission of,through 
metals of different conducting, 
powers, J. Thomas, xxxiv, 205.f 
, daguerrotype exper- 
iment by, B. Silliman, Jr. and, 
W. H. Goode, x\ii, 185. 
multiplier, see Galvanome- 
ter. 
music, production of, C. G. 
Page, xxxii, 896; xxxiii, 118. 
phenomenon, attending the 
soldering of water pipes in N. 
York city, xvii, 194. 
protection by the contact of 
heterogeneous metals, xvi, 263. 
trough, Watkins’s, xvi, 215. 
Galvanism, anthracite a conduc- 
tor of, v, 200. 
, charcoal fused by, v, 108, 
3861; villi, 147, 288; xxxviil, 
190. 
, , L. Vanuxem’s 
examination of, vill, 292. 
, on colors supposed to be} 
transferred by, through animal, 
substances, A. Jones, xxi, 316. 
, A. Crosse’s experiments in, 
see Crosse. 
, crystallization of metals by,| 
G. Bird, xxxiii, 267. 
——, ——, M. Becquerel, xvii, 
383. 
, crystals and insects, A. 
Crosse, xxxv, 125,.f 
——, engravings copied by, von 
Kobell, xlviii, 221.f | 
10 
wy 
( 
ELEcTRICITY. 
Galvanism, engravings and med- 
als by, T. Spencer, xl, 157. 
——, fossils copied by, x 327. 
——, gilding by, xli, 402. 
——, insects supposed to be pro- 
duced by, xxxii, 874!; xxxiii, 
Q72; xxxv, 1256: xlix, 227. 
——, —— ——, W.H. Weekes, 
xliii, 395. 
——, grasshopper’s legs, a sub- 
stitute for frogs, J. W. Bailey, 
xxxi, 292.f 
——, insulation of wires, a mode 
of, proposed, A. A. Hayes, xx, 
409. 
——, metals precipitated by, 
structure of, W. de la Rue, 
xlix, 390. 
, minerals changed by, R. 
W. Fox, xxxi, 373. 
, results from heat of, and 
decomposition, W. Sturgeon, 
KRORTKR Oe 
, shocks from the calorimo- 
tor, how increased, C.G. Page, 
xxx, 137.f 
, size of plates, influence of, 
in, xxvil, 189. 
, theory of, Prof. Pfaff, xix, 
178. 
——, theory of, R. Hare, i,413.f 
, theory of,  Schdnbein, 
xxxvill, 119. 
Galvanography, von Kobell,xlviil, 
Opt 
a Spencer, xl; Vart 
, fossils copied by, xlil, 327. 
Galvano-ignition apparatus, R. 
Hare, xxxii, 282.f 
Galvanometer, R. Hare’s im- 
proved, xxvi, 399.f 
; , rotary 
xxxvill, 339.f 
, J. Henry, on the applica- 
tion of, to electro- anagagee ap- 
paratus, xix, 400.1 
eye. haere notice of a new, 
De 103°, 378. En 
: , large thermoscopic, 
XXXill, 365. 
multiplier, 
