Index. 
S. 
Sabine, Capt., on the variation and dip 
of the compass, 221, 306, 
Saffron, supposed a remedy for sea 
sickness, 70, 
Salt, common, effect of, on the solubility 
of nitrein water, 151, ~ 
Saltpetre; method of purifying, 
constituents of, 153. 
Sanguification, oa the phenomena of, 
12, 265, ; 
Sarracenia adunca, power of, to entrap 
insects, 149. 
- Saussure, Th. de, on the decomposition 
ofstarch by air and water, 67. 
Say, T. Esq:, onthe American sea-snake, 
75—on the genus ocythoe, 220. 
Scoresby, Mr., on the Greenland and 
polar ice, 62—on an anomaly in the 
variation of the needle, observed on 
ship-board, 220. 
Sea, temperature of, bottom of, 314, 
385. 
lx— 
Selenium, on, xxix—discovery of, in 
the sulphor of Fablun, 401. 
Serpents, on the poisonous fangs of, 
304. 4 
Sherry wine, action of, on iron, 388. 
Silver, on, xlii—specific heat of, 167 
—testof, 388. 
Sinovia of the elephant, on, Ixiv. + 
Slee, Mr., on maxima and minima, 193. 
Smith, Sir J, E. on the lignum rhodium, 
148, 
Smith, T. Esq.; on the poisonous fangs 
of serpents, 304, 
Snake, sea, of America, 15. 
Snow, red, qbserved in Baffin’s Bay, 74. 
Society for the Encouragement of Arts, 
Manufactures, and Commerce, 142, 
30T. 
Solids, specific heat of, at different tem- 
peratures, 164. 
——-— and fluids, specific heat of, 463, 
Sorbic acid same as the malic, li, 
Spiders devour sulphate of zinc, Ixxvi. 
Stadion, Count von, experiments of, on 
perchloric acid, confirmed by Davy, 
Wl. 
Starch, on, Ixvi—how acted on by prus- 
sian blue, 68—decomposition of, by 
air and water, 67. 
Steam, dilatation of, xiv—latent heat 
of, 217. 
Steam-bnats, origin of, 279. 
Steel, softening and tempering of, xxxvi. 
Stevenson, Mr., on the bed of the German 
ocean, 135. 
Stevenson’s Dalswinton 
description of, 279. 
Strangways, Hon, W. I. H. F. on the 
rapids of Imatra, 378, 
steam-boat, 
485 
Stromeyer, Prof., on cadmium, 108, 
Sugar, on, Ixv. 
Sulphate of barytes, on the crystals of, 
141. 
Sul pho-chyazate of potash, 40. 
Su) pho-chyazic acid, on, 101, 
Sulphur, new acid of, 380. 
Sulphuretted chyazic acid, on, xliv,356, 
Sulphuretted hydrogen, on, xiii. 
Sylvester, Mr., on the discovery of 
bipersulphate of iron, 466, 
T. 
Temperatures, on the measures of, x, 
112, 161,241, 321. 
Tennent, C, Esy,, analysis of his oxy- 
muriate of lime, 182. 
Thenard, M., on new combinations of 
oxygen and acids, 1, 5, 9—on the 
deutoxide of hydrogen, 380, 
Thermometrical measurement of heights, 
468, 
Thomson, Dr. Thomas, account of the 
scientific writings of Ingenhousz by, 
8l—on the nature of oxymuriate of 
lime, 182—specific gravity of Japan 
copper determined by, 224—analysis 
of protoxide of copper by, 222—ana- 
lysis of potters’ clay from Halkin 
hills by, 382. 
Tiarks, Dr., on the reduction of lunar 
distances for finding the longitude, 
185. 
Tides in Endeavour river, on Captain ~ 
Cooke’s account of, 203. 
Tillicherry, country between, and Ma- 
dras, geology of, 378. 
Tin, melting point of, 223, 
Tin, on, xl. 
Tourmalin, on the analysis of, 310. 
Tungstie acid, on, xliv. 
Turpentine, oil of, elasticity of its 
vapour, 216—latent heat of, 310. 
V and U. 
Vacuum, of cooling in, 241, 
Vapour, elasticities of, 214. 
Vapours, latent heat of, xviii, 217, 
Vanquelin, M., on cyanogen and hydro- 
cyanic acid, "429. 
Vest, Dr. Von, on vestium, 344, 
Vestium, preparation and properties 
of, 344, 
Vincent, M., on the action of prussian 
blue on starch, 68. 
Vinegar, latent heat of vapour of, 218, 
Ulmin from the cork-tree, 314. 
Vogel, M., on sulpho-chyazic acid, 101, 
Uranium, acid of, xliv—yellow oxide 
of, from Autan, 464, 
Uranus, planet, new observations on, 
13, 
