424 
INDEX. 
rica, 41, 328. — on the method of examining the population returns 
of Plymouth, 270. 
Heliotrope , analysis of, 191- 
Herschel, Sir William, biographical account of, 209- 
Hill, Mr, on the spur of tile ornithorhynchus, 412. 
Hodgson, Captain, his journey to the source of the Ganges, 231. 
Hooker, Dr, his Flora Exotica, analysis of, 40b. 
Hoppe, Dr H., on a tour to the coast of the Adriatic, &c. 132, 311. 
Hornschuch, Dr, on a tour to the coast of the Adriatic, &e. 132, 311. 
Hughes, Mr, his observations on Greece, 206. 
Hydro-carbo-sulphuric acid, 401. 
Hydrodynamics, notices in, 186. 
Hydrogen gas, on the sounds of, 184. 
I 
Ice-caverns in the Jura and the Alps, 1. — of the Rothorn described, 290. 
Iceland crystal, Mr Martins experiments on, 130. 
Ignition of wires by the galvanic battery, 88. 
Innes, Mr George, on the visible solar and lunar eclipses for 1823, 174. 
— on the celestial phenomena from Jan. 1. to April 1. 1823, 178. — - 
on the celestial phenomena from April 1. to July 1. 1823, 384. 
Iris metal ornaments, Mr Barton’s method of making them, 128. 
Irritability of the tongue, 26l. 
J 
Jameson, Professor, on the king fish, 386. — on a remarkable thunder- 
storm, 38 7* — on the horn of a rhinoceros found in the Loch of For- 
far, 387- 
Jamesons Land in Greenland described, 353, 358. 
K 
Kennedy, Dr, on an ancient ship found at Stranraer, 31. 
Knox , Hon. George, on the Newry pitchstone, 189- 
L 
Lamarck’s natural history of the alcyonia, spongia, &c. 199- 
Lamps with several wicks described, 388. — self-regulating one invent- 
ed, ib. 
Lava, on a cavern of, in St Michael’s, 41 6. 
Lenses, polyzonal, on the construction of, l60. 
Lesson, Mr H. B. on a safety apparatus for the hydrostatic blowpipe, 
388. 
Lion, on the prickle at the tip of its tail, 2 66. 
Lithographic prizes established, 418. 
Lock, account of Mr Forrest’s new one by percussion, 24. 
Locust, on the supposed written characters on the wing of the, 410. 
Longevity, instances of, 205. 
MacCulloch, Dr, on the use of perfumes in preventing mouldiness, 33. 
Machinery for calculating tables, on the theoretical principles of, 122, 
Mackenzie’s River, on the attempts to reach the sea by it, 77* 
Magnesia, Dr Wollaston’s test for, 187. 
Magnetism of the brass- work of surveying instruments, observations 
on the, 81. 
