9 
Sir 
Sulphur, piercing of hot iron with, 
vill, 182. 
, carburet of, decomposed by 
weak electric action, xviii, 1538. 
——, two chlorides of, xxiii, 382. 
, hydruret of, L. J. Thenard, 
xxii, 351. 
acid, new, xlvii, 191. 
spring, see Spring. 
Sulphurets of the metal, new meth- 
od of precipitating, xlvii, 193. 
Sulphuretted hydrogen gas in the 
state of New York, xv, 235. 
, condensation of, to a 
liquid, M. Faraday, vii, 354. 
, solidified, M. Faraday, 
xlix, 377. 
——, injurious effects of, 
xvill, 160. 
Sulphuric acid, anhydrous, new 
mode of forming, xii, 200. 
; ,Mosander’s mode 
of preparing, xxvili, 360. 
, on a new process for, 
practiced in Germany, T. G. 
Clemson, xx, 347.£ 
, new process for, Pro- 
vostaye, xl, 214. 
, action of, on alcohol, 
Xvi, 267. 
—., , on oil of sassa- 
fras, R. Hare, xxxi, 285. 
, crystallization of, vi, 
186. 
, crystallized hydrates 
of, xx, 384. 
, decomposed and not 
evaporated, on an incandescent 
metal, xxii, 365. 
, manufacture of, at Glas- 
gow, x, 360; xli, 48. 
, tension of, xlvii, 191. 
and sulphate of iron, 
remarks on, xii, 387. 
, action of, on hydrocy- 
anic acid, xvill, 146. 
; , with oil of hem- 
lock, xxxvil, 246. 
and arsenious acids, a 
new compound of, xli, 47. 
, bichloride of, F’. Chevet,xlii,71.! 
256 S 
UR 
Sulphuric acid produced by the Aix 
waters, xix, 176. 
, Native, xv, 238. 
in the Rio Vinagro, x, 
191. 
Sulphurous acid gas, a mode of ob- 
taining, xxvii, 360. 
decomposed by iodine 
in alcohol, xi, 392. 
, reaction of the essen- 
tial oils with, xxxi, 281. 
,a mode of liquefying, 
ix, 195. 
, liquid, vil, 853; xvii, 
166; xxxv, 374. - 
—— ——, solid, xlix, 376. 
ether, xxxi, 275. 
‘Sumach, bimalate of lime in, W. 
B. Rogers, xxvii, 294. 
Summer, Indian, xii, 120; xxvii,140. 
: , on the cause of the 
peculiar aspect of the air in, 
xviii, 66. 
, , L. Foot on, xxx, 8. 
Sun,a blue, seen at Bermuda, x1,323. 
, singular appearance of, xxi, 
» a supposed change by the 
rays of, in an elementary sub- 
stance, J. W. Draper, xl\vi, 390. 
, first observation of the spots 
on, xxiv, 204. 
, connection of spots on, with 
the temperature, xii, 199. 
é , November, 1837, D. 
Olmsted, xxxiii, 393.f 
, heat of spots on, J. Henry, 
xlix, 405. 
Sunderland cave, vii, 19. 
Sunsets, autumnal, influence of the 
great lakes on, W. Gaylord, 
Xxxili, 335.f 
; , in the West, C. Dew- 
ey, xxxvill, 1515 xiii, 200. 
Surgical operation, extraordinary, 
in, 372. 
Survey of the coast of the United 
States, by F. R. Hassler, plans 
and methods in, xvi, 225. 
ibid, under A. D. Bache, 
xlix, 229. 
