4?8 



Index. 



Lagrange, M. de, biographical ac- 

 count of, 1. 



Lamouroux, M. on the fuci, 76. 



Larkin, Mr. on the structure of the 

 cube, 149. 



Lavoisier, M. biographical account 

 of, 81. 



Lavoisier and Laplace, experiments 

 of, on the specific heat of gases, 

 135. 



Lavvson's geometrical problems, 58. 



Lead, peroxide of, singular produc- 

 tion of, 238. 



Lectures, 235, 311. 



Leslie, Mr. John, experiments of, on 

 the specific heat of gases, 135 — 

 account ef experiments and instru- 

 ments depending on the relation of 

 air to heat and moisture, 457. 



Light, physical and chemical proper- 

 ties of, 161 — properties of, 232. 



Lime, oxymuriate of, on, 6. 



Limestone, remarkable vein in, 67. 



Linnaean Society, meetings of, 66, 

 465. 



Lode, what, 350. 



Lucas, M. account of his book on 

 mineralogy, 141. 



M. 



Macculloch, Dr. on a vein in lime- 

 stone, 67 — on the granite tors of 

 Devonshire, 69 — on stafta, 70 — on 

 the geolo:;v of certain parts of 

 Scotland, 153. 



Magnesia, use of, in cases of urinary 

 calculus, 64. 



Magnetic declination, experiments 

 on, 92. 



Magnetical observations at Hackuey 

 Wick, 52, 140, 226, 301, 387, 454. 



Man, Isle of, geological account of, 

 155. 



Manchester, Memoirs of the Literary 

 and Philosophical Society of, 54. 



Manganese, dissertation on, 172, 263 

 — reduction of its oxide. 174 — 

 properties of, 176 -action 6\ :ar- 

 bonic acid on, 177 — action of sul- 

 phuric acid on, 1S1 — of muriatic 

 acid, 267 — salts of, 271 — how sepa- 

 rated from iron, 343. 



Mannoury-Dectot, new hydraulic 

 machine, by, 412. 



Marcet, Dr. method of procuring 

 intense heat, by, 99 — ou the cold 

 produced by sulphuret of carbon, 

 152. 



Mark, M. la, division of animals, by, 

 3J4. 



Martin, Mr. William, on the rotten 

 stone of Derbyshire, 54. 



Measurement of minute particles, on 

 the, 115. 



Meteor, luminous, account of, 456. 



Meteorological journals, 79, 159, 

 239, 319, 399, 473. 



Micrometer, single lens, described, 

 234. 



Microscopic fallacies, 190. 



Miers, Mr. on the composition of 

 azote, 63. 



Milk, 424. 



Mineral species, new, admitted by 

 Hatty, 142. 



Mineralogical observations, 345. 



Mines of Cornwall, some account of, 

 350. 



Mirbel, M. on the flower of coni- 

 ferous plants, 73 — on the flower of 

 mosses, 74 — on germination, 74, 



Mosses, on the male flower of, 74. 



Mucus, account of, 381. 



Mundicky veins, what, 68. 



Muriate of in;inganese, 267. 



Muriatic acid, on the nature of, 25L 



N. 



Narwal, on the tusks of, 234. 



National character, on, 63. 



Near sight, observations qn, 228. 



Newton, Sir Isaac, biographical ac- 

 count of, 241, 321, 401. 



Nitrate of lead, 276. 



Nitric acid, on the comnosilion of, 

 276. 



Nostrils of quadrupeds, new organ 

 in. 306. 



O. 



Oak, on the ulmin from, II. 

 Oxalic arid, analysis of, 449. 

 Oxide of manganese, how purified, 



172, 271, 287. 

 ■'■ of tellurium, 61. 



of tin, 61. 



of zinc, 410. 



Oxides of manganese, 272. 



Oxygen in water of various de*pths, 



66. 



P. 



Patents, list of, 76, 157, 316, 472. 

 Peachy veins, what, 68. 

 Perspiration, fluid of, analysed, 415. 

 Photometer, 460. 



Philips, Mr. William, on the veins of 

 Cornwall, 67. 



