INDEX, 



Electricity, lectures ©n the history and 



practice of, 159, 319 

 Elephants, mechanisnj of their organs 



respiration, 359 

 Entomology of Switzerland, 383 

 Evaporation, spontanequs, applied to 

 economical purposes, 372— rPrinciple 

 ?ind advantages of the process, 375— 

 Description of the apparatus, 377 

 Euphorbium, analysis of, 232— Malate 

 of lime, which it contains in abund- 

 ance, formerly mistaken for gum, 

 233— Component parts of euphcr- 

 biui;n, 234 



F. 



-F. D. on the production of hyperoxi- 

 rauriate of potash, considered with 

 respect to 'Mr. Davy's ideas of the 



- nature of oxirau viatic acid, 010— On 

 the affinity of muriatic acid for dif- 



' ferent bodies, considered With regard 

 to Mr. Davy's ideas' gf its nature, -309 



vfishes, respiration of, its mechanism 

 similar to that of some reptile-, 350 

 •—Examination of the respiratory ap- 

 paratus in fishes, 354 — Peculiarities 

 in fishes that frequently lie at the 

 fcottom of the water, 356; and in 

 those that adhere to others, or to so- 

 lid bodies, with their mouths, 357— 

 Fishes that habitually live in mud, 

 and those that can live some time 

 out of water, 358— Connection be- 

 tween the mechanism of respiration 

 and deglutition not extraordinary, 359 



Flaugergues, M. on the diminution of 

 dilatability of spirit of wine ihermo- 

 meterK, 73— Correction of his state- 

 ment, 75 



Flax, prize for the invention of a ma- 

 chine for 8;nnntng^ in France, 380 



Flowers acquirt their beautiful lints by 

 the same meaus that paint the rain- 

 bow, 170— Dissections of, 17i«*-6ce 

 Plants, aud Trees 



Fluate of lime, see Spar 



Fluor spar, see Spar 



Ftifster, Thomas^ Esq comnaunication 



from, on the effect of changes in the 

 state of the atmosphere on Mr. Do 

 Luc's electiic column, 293 



Fctrtification, treatise on, 384 



Fougues, M. prize conferred on him for 

 whitening grape sugar, 380 



Faurcroy, M, on the proportion of oxi- 

 gen contained in oxides of iron, 187 



Francceur, Professor, his " Contpletcf 

 Coufse of pure Mathematics,'* notice 

 of, .382 



Franklin, Dr. remarks on his theory of 

 electricity, 2 



Fresco painting transferred to canrass, 

 '381 



Friction, electrical eftects of, 3 — 13 



Frogs, their method of respiration, 351 

 G. 



Galvanism, its influence in metallic ar- 

 borizations, 1,12 — Objections to the 

 theory removed, 123 



Gamboge, analysis of, 228— Component 

 l^arts, 231 



GaSj see Gaseous Compounds 



Gaseous compounds of hidrogen and 

 carbon, 321— Their differences de- 

 fend on thg presence of oil and car- 

 bonic acid, 322 — Examination of gas 

 from stagnant water, 3?2— Its pro- 

 perties, 323, 324--Experimcnts on, 

 325 ■ '" ' 



Gay-Lussac, and Thenard, Messrs. on 

 the gas evolved from potassium acted, 

 ypon by sulphur, 32— On the me- 

 tallization of the alkalis, 245, 362 



Geognosy of Arran, 318 



Geological society, notice of the publi- 

 cation of its transactions, 239 



Glow-worm, &c. see Animals, luminotis. 



Gouty concretioas, 225 



Gowar, F. R. Esq. on a new compound 

 resulting from the union of benzoic 

 acid with camphor, 336. 



Grafting trees, 103 



Grape sugar, prize bestowed on M. 

 Proust for extracting, 380 



Gravity, specific, its cause, 293. 

 Gregor, Rev. W. on the analysis of a soil 

 Q foun4 



