INDEX. 
405 . 
Githyy Dr, on the trap and clay-slate in Brecknockshire, 253. 
Glass from straw, 194. 
Glutton j new fossil species of, 389- 
Gordon, Mr, Rev. on a meteorological journal for 1819^ 
Goodwyn, Mr, on a universal method of calculating interest, S65. 
Gosse, Dr, account of his visit to St Filippo, 290. 
Greenland Sea, colour of, 10. — temperature of, S5Q. 
Granites, antique, at Rome, 355, 
Grass, siliceous, new, 192. 
H 
Hall, Captain Basil, on a method of laying down a ship’s track, 277-; 
Hamilton, Dr Francis, on a map of Ava, 89^ 262. — on the quarry 
of corundum in Singvaula, 305. 
Hare, varying, I9I, 
Heat, effect of, on the colouring matter of crystals, 346. 
Hersckel, Mr, on the application of a new mode of analysis to series, 
23. — on mother-of-pearl, 11 7- — on the hyposulphurous acid, 154- 
Hibbert, Dr, on the rocks of Shetland, 67* 224. — on the Shetland 
cod-bank, 138. 
Holland, Dr, discovers boracic acid in the crater of Volcano, 242. 
Hot-springs, account of rocks formed by, 307. 
Hmnboldt on electrical eels, 242. 
Huygens, Christian, his discoveries on double refraction, I67. 
Hygrometer, new one, 67* 
Hyposulphite of soda and silver, refractive power of, 1 84, 
Hyposulphurous acid, 154. 
IJ 
Jacob, Dr, on a new membrane in the human eye, 398. 
Jameson, Professor, his observations on Menge’s journey in Iceland, 
166. — ^his new system of mineralogy, 189--^ — his account of rocks 
formed by hot-springs, 307- — by torrents of hot- water, 311.-^by 
torrents of mud, 312. — on the moulting of birds, 378. — on the 
junction of quartz-rock and linaestone, 378. — his system of geog- 
nosy, 401. 
Ice, method of blowing it up, 398. 
Icebergs of Spitzbergen, 217* 
Iceland, account of Menge’s journey through it in I8I9, 156. 
Inflexion of light, Fresnel’s discoveries respecting it, 150. , 
Interest, universal method of calculating it, 365. 
John, Dr, on potash in vegetables, 394. 
Juno, elements of its orbit, 183. 
K 
Kater, Captain, his experiments on the Length of the Pendu- 
lum, 319- — on the Figure of the Earth, 322= 
L 
Linen, on Sugar from, 363. 
Lizars,' M-V W., on a new style of engraving on Copper, 19* 
Logarithms, proportional, &c. Table of, 95. 
Lyngbys new arrangement of the Algae, 282. 
