so.L 
Solar spectrum, action of gaseous 
and other media on, xlii, 157. 
, photographic impres- 
sion of, and phenomena of, J. W. 
Draper, xliv, 204. 
, new experiments on, 
D. Olmsted, x\viii, 137. 
rays, magnetic influence of, 
xiii, 188. 
, electricity of, xvii, 391. 
, see farther under Light. 
spots, first observations on, 
xxiv, 204. 
, In 1825, connection of, 
with temperature, xii, 199. 
,in Nov., 1887, D. Olm- 
sted, xxxili, 898.f 
, heat of, J. Henry, xlix, 
——_—— 
——— 
——_ 
405. 
halos, at New Lebanon, T. 
Kendall, vit, 337.£ 
——, in Tennessee, at Jack- 
son, x, 368.f 
, in Massachusetts, 
Millbury, x, 369.f 
, in Kentucky, xi, 325.f 
, in Rhode Island, Sep- 
tember, 1816, xi, 328.f 
, in Otsego Co., N. Y., 
Feb., 1823, xx, 297. 
, at Cazenovia, N. Y., 
J: W. Tyler, xxi, 189. 
, at Kingston, U. C., R. 
H. Bonnycastle, xxx, 136. 
, at West Point, A. C. 
Twining, xxxii, 229. 
, theory of, E. S. Snell, 
xlix, 73.f 
heat, effect of, in raising a 
balloon, xxxili, 196. 
and terrestrial radiation, ob- 
served at Montreal, xxxvi, 182. 
—— index, xlix, 301.f 
— phosphori, xvii, 170. 
system, on the elements of, 
BE. HeBurritt, xxvii l29% 
Soldering sheet iron, vil, 379. 
Solfaterra, connection of, with Ve- 
suvius, X!x, 387. 
Solid bodies, instrument for measu- 
ring the expansion of, xxx, 824. 
at 
———— 
244 
s0U 
Solidification of carbonic acid, xxxi, 
163, 404; xxxv, 3801, 346; 
xxxviii, 297%; xlii, 203; xlix, 
206.f 
of gases, M. Faraday, xlix, 
- 373. 
Solorina saccata, xlv, 49. 
Solubility of magnesia, v, 378. 
Songs of birds, xxi, 164. 
Soot, analysis of, xi, 386. 
Sophora affinis, xlix, 130. 
Sopwith’s mode of constructing sec- 
retaries, xxxv, 317. 
Sordawalite, x, 186. 
Sorex, see under Zoology. 
Soubeiran, E., action of chloride of 
lime on alcohol, xxiii, 134. 
, on the pulverization of calo- 
mel, xlvii, 193. 
Sound, concentration of, xix, 190. 
, limits to the audibility of, 
Xxil, 874. 
—., effect of, on the barometer, 
Xxx, 377. 
, reverberation of, and best 
buildings for hearing, xxix, 350. 
. velocity of, vi, 894; xvi, 390. 
———, waves of, apparatus for il- 
lustrating, xlix, 20.¢ 
, subterranean, x, 377. 
: , at East Haddam, Ct., 
XXxix, 336. 
, Influence of, on the elephant 
and lion, x, 186. 
Soundings, deep, in the ocean, by 
the French ship Venus, xl, 407. 
Soups from bones, in France, x, 388. 
South America, extracts from trav- 
els in, xxiv, 382. 
South Carolina, Medical Institution 
and Journal, xii, 382. 
, geological notices of, iil, 1, 
2277. 
South Seas, icebergs in, xxii, 200. 
Southampton lead mine, Massachu- 
setts, i, 186; vi, 201; ix, 166; 
xii, 288; xxii, 57. 
Southern Review, notice of, xiii, 
383; xiv, 199. 
Agriculturalist, xviii, 203 ; 
xxl, 182. 
