420 
INDEX. 
Science, connection of, with religion, 412. 
Scoresby, Capt., his Magnetimeter and C hronometri cal Ccmpass de* 
scribed, 41. 
Seebeck, Professor, on thermo-electricity, 167. 
Sharks and rays, 408. 
Silliman, Prof'., on the fusion of plumbago, anthracite, and the diamond* 
179, 402. 
Slave Population , on the increase of, in North America, 63 . 
Snow, fall of remarkable balls of, at Brunswick, 397. 
Society of Arts for Scotland, proceedings of, 1 89* 
Sound, on the polarisation of, 394. 
Sordawalite, description and analysis of, 161. 
Steam-Boat, description of the one invented by Jonathan Hulls, 274. 
Steam-Engine, description of Mr Perkins’ new one, 172. — application 
of his principle to engines of the old construction, 177, 328. 
Steel, method of cutting it by soft iron, 409* 
Sterns, circular, observations on, $53. 
Strom, M., on anew mineral called Achmite, 55. 
Struve, M., his observations on double stars, 334. 
Sulphate of iron and alumina found native, 403. 
Sulphuretted hydrogen condensed into a liquid, 382. 
Sulphurous acid gas condensed into a liquid, 381. 
Swedish journal, 204. 
T 
Table of the heights of the snowy peaks of the Himalaya, 314. 
Tanning, important improvement in, 411. 
Thermo,- electrical experiments, l6’7. 
Thermometers , on the effect of atmospheric pressure on the bulbs oft 
398. 
Thunder-Storms , on the reappearance of, 397. 
Titanium, metallic, found in cubes, 403. 
Tortoises, fossil, 408. 
Typhon of the Chinese Seas, 205- 
U 
Ur anile, analysis of, 199 - 
United States, population of, for 1820, 207- 
V W 
Variation of the magnetic needle. Tables of the, 243. 
Vetties Giel , a scene in Norway, described, 299* 
Vision of the horse defective, 393. 
Volcanic eruption, destructive one in Java, 410. 
Volcano of barren islands, 205. 
Volcanoes, Guy Lussac’s reflections on, 278. 
Voyage, M. Kotzebue’s new one, 412. 
Water, on the maximum density of, 199* 
Wernerian Society, proceedings of the, 187, 389-~— memoirs of the, 20$* 
Wernerite identical with Paranthine, 393. 
Wheatstone, Mft on the polarisation of sound, 394. 
Whirlwind at Scarborough described* 398. d f ^ " 7 
y i'ia-4 
I vie, Dr, on the organs of the embryo, 270. 
