612 



INDEX. 



of volcanic phenomena, 576 ; insulated 

 masses of silver, 578 ; peat bogs and sub- 

 marine forests of Bourne Mouth Valley, 

 579; of Asia Minor, 581; remarkable 

 dikes of calcareous grit, 584; connection 

 of volcanic phenomena, 584 ; on the dis- 

 location of the tail of many Ichthyo- 

 sauri, 590. 



Geometry, analytical, 602. 



Giraud(H.)on teriodide of chromium, 321. 



Glass, action of sulphate of ammonia on, 

 608. 



Gould (J.), descriptions of various birds^ 

 215, 444, 527, 596, 598. 



Gresham College, Prof. Pullen's lecture 

 on astronomy, 454. 



Gregory ( Dr.) examination of eblanine, 

 98 ; on some remarkable salts, 102. 



Grey (Lieut.) on the meteorology of Tene- 

 rirte, 291. 



Hall (Col.), meteorological observations 

 made in Colombia, 148. 



Hallymeter, for the examination of malt 

 liquors, 218. 



Hamilton (Sir W.) exposition of the argu- 

 ment of Abel respecting equations of the 

 fifth degree, 116; inaugural address de- 

 livered before the Royal Irish Academy, 

 368. 



Hamilton (W. J. ) on the geology of part 

 of Asia Minor, 581. 



Hare (Dr.) on sulphurous asther and sul- 

 phate of astherine, 474. 



Hatchetine, composition of, 338. 



Heat, on repulsion by, 317; its influence 

 on the circulation of the Chara, 457 ; re- 

 searches on, 545. 



Henwood (W. J.) on the phenomena of 

 mineral veins in Cornwall, 125. 



Herberger (M.) on cetrarin, 296. 



Heriades campanularum, 1 8. 



Herschel (Sir J.) on the remarkable in- 

 crease of magnitude of »; Argus, 521, 

 526 ; on the theory of volcanic pheno- 

 mena, 576. 



Hess (M.) on the fermentation of sugar of 

 milk, 139. 



Hogg (J.), specimen of a thermoraetrical 

 diary, 489. 



Home (Sir J.), magnetical observations 

 made in the West Indies, &c,, 206. 



Hood's (C.) treatise on warming buildings, 

 202. 



Hunt (R.) on tritiodide of mercury, 27. 



Hylaeus signatus, 18. 



Hymenoptera, economy of several species 

 of, 14. 



Hypophosphomesitylous acid, 101. 



Impressions from feathers, process for ta- 

 king, 451. 



India, geology of, 514; on the black cot- 

 ton soil of, 430; on the great basaltic 

 district of, 286. 



Iodide of silver, new property of, 258. 



Indigo, on the manufacture of, 264. 



Iridium, method of dissolving, 141. 



Iron : — its action at a high temperature on 

 benzoic acid, 460; on camphor, 460; 

 peculiar voltaic condition of, 48 ; prot- 

 oxide of, its action on protoxide of cop- 

 per, 299. 



Isoraorplious substitution, on an apparent 

 case of, 406, 407. 



Ivory (J.) on ellipsoids, 356. 



Jamaica, flora of, 263. 



Jerrard (G. B.) on the occurrence 'of the 

 form -, 345. 



Jervine, a new vegetable base, 29. 



Johnston (Prof.) on the equivalents of pot- 

 ash, soda, and silver, 324 ; on Hatchet- 

 ine, 338 ; on the composition of Midule- 

 tonite, 261 ; on the dimorphism of chro- 

 mate of lead, 387 ; on the composition 

 of Ozocerite, 389 ; on an analogy in 

 atomic constitution between the earthy 

 carbonates and alkaline nitrates, 480; 

 composition of retin asphalt, 560. 



Johnstone (Dr.), notice of the late, 277. 



Kane (Prof.) on the combinations derived 

 from pyroacetic spirit, 100, 107; on Du- 

 masine, 108. 



Kelly (Dr.) on low fogs and stationary 

 clouds, 355. 



Kennedy (A.) on the economy of several 

 species of hymenoptera, 14. 



Knox (G. J., and Rev. T.) on fluorine, 105. 



Lactic acid in soar-crout, 1 42. 



Laminaria digitataj on the reproduction of 

 the frond, 96. 



Laming (R.) on the primary forces of elec- 

 tricity, 486. 



Lamont (Dr.) on the value of the mass of 

 Uranus, 522. 



Latham (Dr.), notice of the late, 274. 



Lead, dimorpliism of the chromate of, 387 ; 

 new acetate of, 133; oxalo-nitrate of, 

 459 ; oxide of, and oxide of silver, defi- 

 nite combination of, 217. 



Leithead's Electricity, review of, 127. 



Lens, crystalline, on the, 22. 



Liebig (M.) on lactic acid in sour-crout, 

 142 ; on the constitution of some organic 

 acids, 381. 



Light, absorption of, on Von Wrede's e: - 

 planation by the undulatory theory, 114; 

 its intensity in the neighbourhood of a 

 caustic, 452 ; on the dispersion of, 367 ; 

 undulatory theoi*y of, 10. 



Lime, carbonate of, its crystalline form, 

 465, 470. 



Linnaean Society, 92, 531. 



Liquids, maximum density of, 1. 



Lloyd ( Prof. ) on the aurora borealis, Feb. 

 18, 98; account of the magnetical ob- 

 servatory at Dublin, 119. 



