INDBX TO VOL. X. 



Adam, Dr, on the Mantis tribe of in- 

 sects, 351 

 Adie, Mr A. MeteorologicalJoumal, 192 

 -^tna, Mount, on the eruptions of, 310— 



on the large chestnut of, 314 

 Anchors, remarks on their formation, 220 

 Arch, luminous, on a splendid one at 

 Plymouth, 146 — at Chesfield Lodge, 

 177— at Islay-house, 177 — at Edin- 

 burgh, 177— at Perth, 179 

 Aurora borealis at Perth, 179 



Barometer, account of Dr WoUaston's 

 differential one, 356 



Becquerel, M. on the properties of the 

 Tourmaline, 51 — on the temperature of 

 conducting wires, 368 



Belemnites, their origin discovered, 376 



Berlin, account of the great congress of 

 Philosophers at, 225 



Berthier, M. his description of nontronite, 

 a new mineral, 150 



Birds, experiments on the ears of, 353 



Bismuth blende, analysis of, 371 



Blackburn, Rev. Mr, on a new sound- 

 ing board for a church, 357 



Blue colour, process for making a fine one, 

 358 



Bombay, mean temperature of, 17— on 

 - the rain at do., 141 



Bottles immersed in the sea, experiments 

 on them, 144 



Braconnot, M. his process for making a 

 fine blue colour, 358 



Brewster, Dr, on two remarkable rain- 

 bows, 163---on the motions of the mo- 

 lecules of bodies, 215 — on a singular 

 property in glauberite, 329— on dia- 

 mond and sapphire lenses, 327 — ob- 

 servation on tables of refractive pow- 

 ers, 298 



Bustamente, Don Jose Maria, on a new 

 gravimeter, 207 



Calder, James, Esq., on the geology of 

 India, 181, 371 — on a singular species 

 of mollusca, 352 



Cambridge Philosophical Society, pro- 

 ceedings of, 1 74, 366 



Cassia, oil of, experiments on the cause 

 of its high dispersive power, 308 



Cast iron, on its permanent increase of 

 bulk, 356 



Celestial phenomena, 188, 376 



Chalcedony with a large fluid cavity, 370 



Chestnut tree of Mount iEtna, on the 

 large one, 314 



ChrysoHte in obsidian, first discovered by 

 Professor Del Rio, 206 



Clouds, on a curious formation of, 33 



Comet, Encke's, rediscovered, 175 — its 

 elements continued, 175 — comet of 

 September 1827, 176 



Congress of philosophers at Berlin, 225 



Contributions to physical geography, 310 



Copper, metallic, on the quantity raised 

 in Britain, 180 



Cornwall, on the steam engines of, 34— 

 quarterly notice of their performance, 

 137, 213 



Datholite, analysis of, 370 



De Witt, Mr, on the variations of the 

 magnetic needle, 22 



Diamond lenses for microscopes, 327 



Diamonds, artificial ones supposed to be 

 made in France, 369 



Double stars in the southern hemisphere, 

 301 



Drummond, Dr, on the motions of the 

 molecules of bodies, 215 



Dunlop, James, Esq. on remarkable ne- 

 bulae and clusters of southern stars, 

 282 — on double southern stars, 301— 

 on Encke's >omet, 367 



Electrical conducting power of fluids, 179 



Encke's comet, 175 



Eye, on its insensibility to particular co- 

 lours, 153 



Falmouth, on mean temperature of, 178 



Flourens, M., on the ears of birds, 353 



Foerstemann's experiments on the con- 

 duction of voltaic electricity by fluids, 

 179 



Forbes, J. D. Esq., his physical notices 

 on the Bay of Naples, 109, 245 — on 

 a new self-registering thermometer, 

 159 — on the defects of the sympieso- 

 raeter for measuring heights, 334 



Funchal, meteorological journal kept at, 

 73 



Gas, inflammable, on boring for salt, 186 



Geography physical, contributions to, 310 



Geology of India, summary of the, 181, 

 371 



Gerard, Captain Patrick, his meteorolo- 

 gical register at Kotgurh, 139 



Gilbert Davies, Esq., P. R. S., his be- 

 quest to science, 186 



