INDEX, 
392 ' 
Stars, on their southern motion, 177- 
Steam-engine, Perkins’s, 365. 
Steam- guns, proposed by Mr Perkins, 3 67* 
Steel, on a method of cutting soft iron, 202. 
Struve, M. of Dorpat, on double stars, 102, 331. — on the parallaxes of 
stars, 3 61. 
Sulphato-tri- carbonate of Lead, on its forms of crystallisation, 286. 
Sulphur, melted, on the form of ci^stallisation of, 370. 
T 
Temperature, mean of London for 1822, 186 — of the Canaries, 187. — 
of springs in Beauvois, ib. 
Temperature of particular caverns, on the cause of its depression, 121. 
Temple, on a newly discovered one, in Corfu, 239- 
Test-paper for acids and alkalies, 271- 
Thermo-electrics, Professor Cumming’s table of, 185. 
Tide-gauge, on a new one, S63. 
Tide table, Mr Innes’s new ones, 383. 
Transactions of the Royal Society of Edinburgh, analysis of Vol. X. 
Part I. 346. 
Tunnelling, on a new plan of, 276. 
U V 
Uranium, on the reduction of, 369- 
Variation of the weed/e in France, 11 6. — in Great Britain, 118. — in Por- 
tugal, Spain and Italy, 11 9. — in Turkey, 120. — in Asia, 283 — in 
Africa, 285. 
Vitrified Fort in the Kyles of Bute described, 347. 
Vogel, M. on the atmosphere of seas, 367. 
W 
Wallace, Professor, on formulse for the logarithms of trigonometrical 
quantities, 349* — on an improvement in the solution of a case in 
plane trigonometry, 350. 
Watej^-spdiit in France, on a remarkable one that occurred there, de- 
scribed, 365. — near Genoa, 366. 
y/ernerian Society, proceedings of, I70. 
V/hewell, Mr, on a formula for the angle between two places, 362. 
V/hirlwind, description of one near Scarborough, 11. 
Woodcock, observations on the, 198. 
Wollaston, Dr, on the magnetism of titanium, cobalt, and nickel, 183. 
— on the double refraction of Iceland-spar, 328. 
Y 
Young, Dr Thomas, on an improved sliding-rule for gauging casks. 
Zcenmcs or Yangoma, account of two maps of, 59. _ 
P. Neill, Printer. 
