414 
INDEX. 
— - at the Straits of Menai, ib. — at Galashiels, 241.-— at Kings- 
meadows, the Seat of Sir John Hay, Bart, ib.— at Thirlestane 
Castle, the seat of the Hon. Captain Napier, 243. — at Dryburgh 
Abbey, the seat of the Earl of Buchan, ib.— Union chain-bridge 
over the Tweed, 247- — new one proposed, 252. 
Buchanan , Dr F. on water-spouts, 275. — on an extraordinary appear- 
ance at sea, 303. 
Buckland, Professor, on the structure of the Alps, 224. 
C 
Cambridge Philosophical Society, account of the proceedings of the, 
from March 5. to May 22. 1821, 211.— office-bearers of, 215. 
Campbell , Rev. Mr, his second journey in Africa, 403. 
Caoutchouc, on the tree which produces it, 406. 
Carbeth, mean temperature of, from 1817 to 1820, 394. — quantity of 
rain that fell at, from 1815 to 1820, 395. 
Cecil , Rev. W. on a regulator for equalizing the velocity of ma- 
chinery, 215. 
Chacal, 271. 
Chick-pea, 366. 
Chimpanzee, 269. 
Christie, Mr S. H. on magnetic attractions, 289- 
Chronometers, on the effects of magnetism upon, 220, 383. — on the 
difference between the land and sea rates of, 378. 
Clarke, Rev. Dr E. D. on the crystallisation of water, 211. — on ar- 
ragonite, ib. 
Climate of Southern Africa described, 279* 
Cold, effects of, upon ice, 405. 
Colladon, Dr, on a descent in the diving-bell, 8. 
Columns of light observed at Melville Island, 202, 
Comet of 1819, on the phases of, 387- — on its supposed transit over 
the sun, 21 6. 
Configliachi, M. on the Proteus anguinus, 84 
Congo, observations on, 45, 50, 268. 
Copernicus, notice respecting, with a fac-simile of one of his letters, 63. 
Copper, phosphate of, from the Rhine, analysis of the, 211. — mica, 
350. — sulphuret of, 344. 
Coral ornaments, on the discoloration of, and the method of prevent- 
ing it, 131. 
Cox, Captain Hiram, on the naphtha wells at Rangoon, 26. 
Crocodiles in the Congo, 273. 
Cron, Mr G. on the singular treatment of a queen bee, 65. 
Crystallography, metallurgic, observations on, by Professor Hauss- 
mann, 155. — metallic crystallisations, 157*- — iron, ib. — copper, 
1 6l .• — aurichalcum, 162. — graphite, 163. — sulphuret of copper, 
344. — sulphureous lead, 345. — sulphuret of antimony, ib. — - 
oxide of zinc, 346. — copper-mica, 347- — crystalline vitreous sco- 
riae, 348. — arsenic acid, 350. 
Camming, Rev. J. on the connexion between galvanism and magne- 
tism, 212. — on the application of magnetism as a measure of 
electricity, 214. 
' D 
Darnell, Mr, his new platinum pyrometer described^ S97-- — results 
obtained with it, 398. u/, 
