416 INDEX. 
Brooke , Mr, reply to his observations on the optical system of mine- 
ralogy, 36l. 
Buckland, Professor, on the caves of Kirby Moorside, and the other 
caves in England, 221. 
C 
Cagnard de la Tour on the effect of heat and pressure on fluids, 199- 
Calculating engine, Mr Babbage’s, 1 97, 39 7* 
Carbonaceous bodies , on the fusion of, 402. 
Carbonic acid gas condensed into a liquid, 382. 
Carlsbad springs , 204. 
Catalogue of variable stars, 220. 
Caves at Kirby Moorside, 221. — in different parts of England, 225. 
Celestial phenomena from July 1. to October 1. 1823, 184. — from Oc- 
tober 1. 1823 to January 1. 1824, 38 7- 
Celt , account of a very remarkable one of flint, belonging to James 
Nairne, Esq. 152. 
Chalk not found in Crete, 406. 
Changeable stars, observations on, 219- 
Chara vulgaris and hispida, on the phosphorescence of, 194. 
Chess-board, on the knight’s moves over it, 236. 
Chords , sonorous, on their excellence, 395. 
Chlorine condensed into a liquid, 384. 
Chronometrical compass, Captain Scoresby’s described, 54. 
Circular sterns, observations on, 353. 
Cold, severity of it in Holland, 196. 
Comet of Encke rediscovered, 193, 391. 
Compass, on an improved one, 397- 
Composite system in crystallography described, 370. 
Condensation of gases into liquids, 199, 381. 
Corolla of plants, on the phenomena of, 237- 
Cyanogen condensed into a liquid, 383. 
D 
Delambre, M. Le Chevalier, biographical notice of, 209- — list of his 
different writings, 215. 
Dick, Mr Thomas, his work entitled The Christian Philosopher an- 
nounced, 412. 
Diamond, on its formation, 1 65. — on the fusion of, 179- — on the ma- 
trix of the Brazilian kind, 202. 
Don, Mr David, on five new genera of plants, 259* 
Dorpat, observatory of, 39 1. 
Double stars, observations on, by MM. Struve and Amici, 334. 
E 
Earth-worms multiply by eggs, 409. 
Eclipse of the moon, on the measurement of the progress of one with 
a sextant, 5 7* 
of the moon of the 23d July observed, 387- — eclipse of the 
sun on the 7th February observed, 392. 
Electricity, animal, 1 96. 
on the production of, by pressure, 396. — on the development 
of, by two pieces of the same metal, id. — elicited from the cat, 407» 
Electrical machine improved, 395. 
