INDEX TO VOL. II. 



Absorption of light, analysis of two 

 memoirs on the, 344. 



Acoustic figures produced by elastic 

 membranes, 296. 



Acta Acadeunia natura; curiosorum, Tom. 

 XI. No. I. analysed, 164. 



Adie, Mr, his meteorological registers kept 

 at Canaan Cottage, 191, 384. 



Africa, on the physical geography of the 

 south of, 252. 



Air, dry and humid, refractive power of, 

 36. 



America, on the botany of, 108. 



Anas Kufitorques, 186. 



Antimony glance, axotomous, 374. 



Arsenical pyrites, axotomous, 373. 



Arts, Society of for Scotland, 171, 3G2. 



Auger, new boring one, by Dr Cnurch, 

 343. 



Austria, botanical intelligence from, 358. 



Ava, account of its frontier towards Ben- 

 gal, 4a 



Avogadro, M. on the affinity of bodies 

 from caloric, 370 — on their neutralis- 

 ing powers, ib. 



Axinite, dichroism of, 3C6. 



Baillie, Dr M. his works announced, 

 188. 



Barlow, Professor, on the force exerted 

 in Bramah's presses, 293 — receives a 

 present from the Emperor of Russia, 

 379. 



Barometer, on the influence of winds on 

 the, 241. 



Bat, discovery of a fossil one, 185. 



Bate, Mr, his treatise on spectacles re- 

 commended, 379. 



Batrachoides, 187. 



Beams, on the convergency of the solar 

 ones, 136. 



Bcrthier, M., his acalysis of native car- 

 bonates of lime, magnesia, iron, &c. 

 179. 



Bell, Mr Charles, his supposed discover- 

 ies respecting vision examined, I. 



Bell Hock Lighthouse, account of it by 

 Mr Stevenson, 160. 



Berzelius, M., his analysis of the Carls- 

 bad water, 176 — of urar.ite, 372. 



Black-lead mine in Inverness shire, 97- 



Blacking for leather, Braconnot's process 

 for making it, 343. 



Blende, analysis of, 37L 



Botanical works newly published, notices 

 of, 165, 354. 



Botany of America, account of it, 108, 



Braconnot's process for making blacking, 

 :t 1 ;. 



vol. 11. no. II. APRIL 1825. 



Bramah's presses, on the force exerted 

 in them, by Professor Barlow, 293. 



Brandy, process of making it from pota- 

 toes, 151. 



Breakwaters, on the invention of floating 

 ones, 151. 



Brewster, Dr, on the vision of impres- 

 sions on the retina, 1 — on single mi- 

 croscopes from the lenses of fishes, 98 



On rice paper, 135— on the convergen- 

 cy of the solar beams, 136 — on the op- 

 tical structure of the lithion mica, 205 

 — on Withamite, a new mineral, 218 



— on Gmelinite, a new mineral, 262 



on Levyne, a new mineral, 332 — on the 

 absorption of light, 344 — on the opti- 

 cal structure of Somervillite, 366. 



Brinkley, Dr, receives the Copley me- 

 dal, 173. 



Brisbane, Sir Thomas, on Meteorological 

 tables kept in Van Diemen's Land, 75 

 — on the tides at the mouth of Mae- 

 quarrie Harbour, 213. 



Brochantite, a new mineral, 178. 



Brookite, a new mineral, 377- 



Burner, gas, Jenning's improved onc, 

 344. 



Carlsbad water, analysis of the, 176. 



Caterpillars, on the emigration of a co- 

 lony of, observed in Provence, by .Mr 

 Skene. 93. 



Celestial phenomena, 189, 381. 



Chalcolite, a new mineral, 372. 



Chica, a colouring matter, 370. 



Chrysoberyl, Seybert's analysis of, J 76. 



Coffee, new apparatus for roasting it, 343. 



Clark, Mr Thomas, on a new quick- 

 silver pump, 267. 



Colophane, Bois de, account of it, 182. 



Columbite, observations upon it, 178. 



Comet of 1824, 171— one of 1821, 172— 

 of 1819, 364— double tail of, 365. 



Comets, their supposed influence on the 

 sun, 367- 



Compensation pendulum of Mr Ritchie, 

 337. 



Composition of crystallised bodies, 88. 



Contributions to popular science, No. III. 

 135— No. IV. 136. 



Copper, process for alloying it for ships, 

 149. 



Copper glance, prismatoidal, 373. 



Crystals, Rev. \V. Whcwelfs general 

 method ofcsJcuUting their angles, 312. 



Dalton, Mr, his process for valuing indi- 

 go, 1 49 — his experiments on oil, and 

 the gases obtained from it by heat, 1 56 

 —on the dew point, or quantity of va- 



C C 



