432 
INDEX. 
Jlihberty Dr, notice by, concerning David Gilbert Tate, a lad born 
deaf and blind, 171- — on the rocks of Shetland, 296 . 
Humboldt on the earthquake which destroyed the town of Carac- 
cas, 272. — on detonating mud in South America, 423. — on the 
Lantern of Maracaybo, 424. — on the hot springs of La Trinche- 
ra, ib. 
Hunter, Mr, on an improved self-acting pump, 79* — on a new re- 
taining syphon, 204. 
Hygrometer, new, made of the internal membrane of the Arundo 
phragmites, 32. — account of an improved, 11 6. 
Hyposulphite lime, 11. — of potash, 19- — of soda, ib. — of ammo- 
nia, ib. — of baryta, 20. — of strontia, ib. — of magnesia, 21. — of 
alumina, ib. — of iron, 22. — of copper, ib. — of zinc, 24. — of man- 
ganese, 24. — of tin, ib. — of lead, ib. — of silver, 26. — of potash and 
silver, 27* — of mercury, 28. — of soda and silver, 398. — of ammonia 
and silver, ib. — of lime and silver, 399* — of strontia and silver, 400, 
of lead and silver, ib. 
Hyposulphuric acid, 209- 
Hyposulphurous acid, 8, 
I J 
Jameson, Professor, on the geognostical relations of granite, quartz- 
rock, and red sandstone, 109. — on the black-lead or graphite of 
Borrodale, of Ayrshire, and of Glenstrathfarrar, 130. — on secon- 
dary greenstone and wacke, 138. — on veins which connect mine- 
ral beds, 144. — on trap veins, 145. — on the geognosy of the Cape 
of Good Hope, 283.— on the geognosy of the neighbourhood of 
Edinburgh, 352. 
Jan Mayen, island of, its appearance and productions, 121. 
Insect, account of a poisonous one that destroys horses, 381. 
Instruments, wind, Poisson’s researches on, 204. 
Inundations of the Val de Bagnes, 187. 
Iodine, plants which yield, 254. 
Iron, meteoric, masses of, lists of, 232. 
Jumna and Ganges, sources of, 127. 
K 
Hater, Captain, verification by, of the latitude of Arbury Hill, 200. 
L 
La Grange’s theory of meteoric stones, 222. 
Lamp Gas, description of a portable one, 373- 
Lampadius on metallurgy, 212. 
Lantern of Maracaybo, 424. 
Lapis lazuli, geognostical situation of, 41 9. 
La Place on the form and structure of the Earth, I98, 
Larch-bark, use of, in tanning leather, 315. 
Lassaigne and Feneuelle on a new vegetable, alkali, 418. 
Livingstone, Dr, on an improved hygrometer, 11 6. 
Libration of the moon, I98. 
