547 



INDEX TO VOL. XXXI. 



ACETAL, on the preparation and com- 

 position of, 77. 



Acidii: — hippuric, 127; prussic, 146; ar- 

 senious, 151; cinnamic, 153; nitrocin- 

 namic, 154; margaric, 167; oxalic, 

 233; metacetonic, 266; valerianic, 348, 

 538; pectic and metapectic, 390; nitric, 

 454 ; cuminic, 459 ; carminic, 478 ; ni- 

 trococcusic, 486; chloric, 510; osmi- 

 amic, 534. 



Adams (Mr.) on an important error in 

 Bouvard's tables of Saturn, 143; on 

 the elements of Neptune, 380. 



Adie (R.) on some experiments with gal- 

 vanic couples immersed in pure and in 

 oxygenated water, 350. 



Airy (Mr.) on inequalities in the motion 

 of the moon, 384. 



Albumen, action of induced electric cur- 

 rents on, 249. 



Alcohol, action of chlorine on, 77. 



Aldebaran, projection of, on the moon,233. 



Algebraic equation of the fifth degree, on 

 the, 341. 



Algebraical surfaces, on asymptotic 

 straight lines, planes, cones and cylin- 

 ders to, 425. 



Alizarine, 46. 



Anderson (Dr. T.) on certain products of 

 decomposition of the fixed oils in con- 

 tact with sulphur, 161. 



Annular eclipse of Oct. 9, 1847, obser- 

 vation on the, 228. 



Antimony, on the salts of, 230. 



Apparatus, chemical, on some improved 

 forms of, 156, 393. 



Arseniates, on a new test for, 258. 



Arsenious acid, on two varieties of, 151. 



Astringent substances, on the means of 

 testing the comparative value of, 150. 



Astronomy, on a new notation for express- 

 ing various conditions and equations 

 in, 134. 



Atmosphere, on the polarization of the, 

 444. 



Aurora borealis of Oct. 24, 1847, obser- 

 vations on the, 369. 



Balsam of Tolu, on some products de- 

 rived from the, 153. 



Bancalari (M.) on the magnetism of 

 flame, 421. 



Barrcswil (M.) on the dehydration of 

 moaohydrated sulphuric acid, 314. 



2 



Bath, analysis of the water of the thermal 

 spring of, 56. 



Bile of the sheep, on the composition of 

 the, 366. 



Binney (E. W.) on fossil calamites found 

 standing in an erect position in the 

 carboniferous strata near Wigan, Lan- 

 cashire, 259. 



Birt (W. R.) on a new kite-apparatus for 

 meteorological observations or other 

 purposes, 131. 



Bismuth, analysis of the needle ore of, 541. 



Blowpipe, improvements in the construc- 

 tion of the hydro-oxygen, 356. 



Books, new, notices respecting, 67, 219. 



Braconnot (M.) on the urine of the calf 

 and the sheep, 49. 



Brewster (Sir D.) on the modification of 

 the doubly refracting and physical 

 structure of topaz, by elastic forces 

 emanating from minute cavities, 101 ; 

 on the polarization of the atmosphere, 

 444 ; on the existence of crystals in 

 the cavities of minerals, 497. 



Bronwin (Rev. B.) on the inverse calculus 

 of definite integrals, 12; on the alge- 

 braic equation of the fifth degree, 341. 



Brown (J.) on the molybdate of lead, 253. 



Buchner (M.) on the presence of arsenic, 

 copper and tin, in the mineral waters 

 of Bavaria, 392. 



Bussy (M.) on two varieties of arsenious 

 acid, 151. 



Caffeine and its compounds, on the com- 

 position of, 115. 



Calamites, fossil, observations on, 259. 



Callan (Rev. N. J.) on a new voltaic bat- 

 tery, and on a cheap substitute for the 

 nitric acid of Grove's platina battery, 81. 



Cambridge Philosophical Society, pro- 

 ceedings of the, 130, 301, 376. 



Carminic acid, researches on, 478. 



Catalysis, observations on, 96, 192. 



Chapman (E. J.) on the constitution of 

 the needle ore of bismuth, 541. 



Chloric acid and the chlorates, observa- 

 tions on, 510. 



Clays, on the composition of, employed in 

 pottery, 435. 



Coathupe (M.) on the preparation of gun- 

 cotton, 152. 



Cochineal, researches on, 471, 481. 



Colouring matters, on the action of a 

 N2 



