INDEX. 



483 



PAGE 



Iron peroxide of, separated by 

 acetate of potash . . . 205 



Johnson's, Mr,, optical investiga- 

 tions 142 



King's, Mr. notes on the life of 

 Dupuytren .... 82 



Larch, diseases of the . . .72 

 Laumont, Gillet de, biography of 75 

 Lardner, Dr. on railroads . 220 



r- steam carriages . 230 



Lead pipes corroded by electrical 



agency .... 205 



Light white, composition of 



27, 351, 108,. 172 



voltaic on . . . . 213 



Lime, racemate of , . . 105 



acetate of . . . .134 



Linnean Society, transactions of 304 

 Lloyd Professor, magnetic obser- 

 vations by . . * . 218 



Logologues, theory of . .215 

 Lyell, Mr. his Bakerian lecture . 388 

 Lymph, nature of . . . 15 



Madder, dyeing .... 452 



purple . , , 454 



Madras, weather at . . . 479 

 Magnesia, carbonate sublimation of 201 



medicated liquid . 74 



j-acemate of. , .167 



Magnetism terrestrial . 213, 384 



as amoving power 214, 469 



Magnetic lieedle, variation of at 



Berlin 384 



influence by electricity . 385 



observations in Ireland 218 



Manganese sesqui-sulphate of . 369 



racemate of . . 171 



Malt, on .... 295 



Malabaricus hortus.. commentary 



on 305 



Margarine . . . . 156 

 Manchester, education at . .312 

 Martinet's pathology . . 390 

 Mash-tun, description of . . 458 

 Mathematics, section of . . 206 

 Matthews, Charles, his thigh-bone 311 



Meconine 382 



Megalychthys Hibberti . . 69 

 MeUoni, M., his experiments on 



heat . . . . . 150 

 Mercury, racemated sub-oxide of. 248 

 ammonia ferro-cyanodide 



of 387 



Metals, dilatation of, by heat . 154 

 Mill for grinding malt . . 458 

 Minerals, specific heat of . .44 

 Mordants cotton . . . 452 

 Morphine ..... 382 

 Miiller, Dr., on the blood . 15 



Murchison, Mr., on old strata 



PAGE 



. 194 



Naphthaline, on . . . 314 



Narceine 382 



Narcotine . . . . ib. 

 Needle dipping, on, a new one . 215 

 Newton, Sir Isaac, extraordinary 



conduct to Flamsteed . 419, 423 

 Nickel, racemate of . . . 171 

 Nuttall's flora of the Arkansas . 74 



Perichromascope, a new instrument 25 

 Pharmaceutical preparations . 474 

 Phillips, Mr., on the fall of rain . 216 



fossil astacidae 190 



Plants, absorption of . . 307 



of Arabia . . . 398 



new method of drying . 74 



Changes in the inferior 



order of 62 



Plateau, M,, on accidental colours 281 

 Plumula, on the . . . 298 

 Poisoning, cases of, in France . 154 

 Potash and soda, separation of 11, 398 



with carbonic acid . 471 



Powell, Mr., on dispersion of light 232 



Cauchy's theory . 147 



two kinds of heat 150 



Prieur, M., theory of accidental 



colours .... 182 

 Prinsep, Mr., on dilatation of 



metals ..... 154 

 Pritchard, Mr. A., on measuring 



prismatic spectra . . .122 

 coloured impressions 



of engravings .... 143 

 Priickner, M., on pyroligneous 



acid 133 



Pseudomorphine . . ,316 



Pulse, experiments on . . 310 

 Pyroligneous acid, preparation of. 133 

 Pyroxylic spirit, composition of 374 



Quain, Dr., edition of Martinet's 



pathology .... 390 

 Quinine, phosphate of . . 153 



Racemic acid, on . 97, 241, 164 

 Railroads, Dr. Lardner on . 220 

 Rain, fall of . . . . 216 

 Rainy, Dr., on the action of saline 

 solutions on fibrin . 365 



