INDEX TO VOL. IV. 



Abel (N. H.), short account of his 

 life, 77. 



Acetic acid, glacial, 317. 



Achromatic microscope, TuUey's, 353. 



Acids : — gallic, and tannin, distinctive 

 characters of, 58 ; formic, new pro- 

 cess for preparing, 60 ; pliosphoric, 

 276 ; carbonic, and water, action of 

 metals on, 317 ; glacial acetic, 317. 



JEther, hydriodic, preparation of, 59. 



Aldini's (M.) incombustible dress for 

 firemen, 148. 



Alkalies, vegeto, new, 233, 461. 



Alkaline carbonates, analysis of sili- 

 ceous minerals by, 23 1 ; new vegeto- 

 alkalies obtained from cinchona, 233. 



Analyses : — of siliceous minerals, 231 ; 

 of indigo, 234. 



Andrews (J.) on the detection of bary- 

 ta or strontia in union with lime, 404. 



Animals, on the unity of organization 

 in, 379. 



Arago (M.) on the elastic power of 

 steam, 235. 



Astronomical Society, 223, 361, 459. 



Astronomyt-occuhationsof Aldebaran, 

 66, 223, 459; immersion of Aldebaran, 

 223 ; Prof. Encke's Ephemeris for 

 1831, 172; on the latitude of the 

 Calton Hill Observatory, 224; on 

 the longitude of the Armagh Ob- 

 servatory, 225 ; on the elements of 

 the planet Ceres, 271 ; on the con- 

 version of right ascension and decli- 

 nation into longitude and latitude, 

 330 ; on Guinand's glass for tele- 

 scopes, 351 ; address at the anniver- 

 sary meeting of the Astronomical 

 Society, 361 ; lunar occultations of 

 fixed stars for May and June, 390; 

 solar spots, 464; on the Comet in 

 Pegasus, 446. 



Aurora borealis, 158, 463 ; on the influ- 

 ence of, on the magnetic needle, 355. 



Barium, chloride of, on, 276. 



Baryta or strontia, detection of, in 

 union with lime, 404. 



Bath waters, on the presence of iodine 

 &c. in, 9. 



Becquerel (M.) on the electrical for- 

 mation of crystallized sulphuret, 226; 

 Mr. U Phillips's remarks on, 227. 



Bell (C), Mr. Gilbert's address to, on 

 delivering the Royal Society's me- 

 dal, 43. 



Berzflius (M.) on thorina and tho- 

 rinum, ftSO, 



Bevan (B.) on the draught of carriages 

 upon common roads, 286. 



Bible geology and zoology, 8, 193, 310, 

 435. 



Bicheno (J. E.) on the plant intended 

 by the shamrock of Ireland, 289. 



Binary or dichotomous system, 430. 



Bluett's (T.) method of obtaining ske- 

 letons of small fishes, 151. 



Bolton (G. B ), account of the united 

 Siamese Twins, 450. 



Bombay, register of the pluviometer 

 at, in 1828, 14. 



Books, new, 136. 



Bostock (Dr.) on the purification of 

 Thames water, 268. 



Botany ; — on artificial and natural ar- 

 rangements of plants, 15, 97, 180; 

 on the vegetation of the first period 

 of the world, 23, 185; on Lathreea 

 si/tiamaria,46; new succulent plants, 

 106 ; on the plant intended by the 

 shamrock of Ireland, 289. 



Bowman (J. E. ) on Lcilhrtea squamaria, 

 46. 



Brewster (Dr.) on double refraction in 

 the molecules of bodies, M6. 



Bromine and iodine, on the atomic 

 \veights of, 276. 



Buckland (Dr.) on the bones of the 

 Tguanodon found in tlie Isles of 

 Wight and Purbeck, 54 ; on the dis- 

 covery of coprolites in North Ame- 

 rica, 32 1 ; on the geology of Wey- 

 mouth, 454. 



Burney (Dr.), observation of the oc- 

 cultation of Aldebaran, Oct. 1.5, 

 1829, 66; on the copper-coloured 

 light reflected from the dark part of 

 the moon's disc, 66 ; meteorological 

 journal for 1829, 391. 



• meteorological observa- 

 tions, 78, 158, 238, 318, 465. 



Cabbage, red, green lake prepared 

 from, 61. 



CacteiE, Mr. Ilaworth on, 107. 



Carbon, sulphuret of, decomposition of, 

 by electricity, 61. 



Carbonates ; — alkaline, analysis of sili- 

 ceous minerals by, 231 ; of lime and 

 soda, native compound of, 389. 



Carbonic acid and water, action of 

 metals on, 317. 



Carriages, on the draught of, on roads, 



286. 

 Cassius, purple powder of, resembling 



precipitate of silver, 58. 

 Census, Mr. Lubbock on the, 416. 



