Index. 



447 



Light, solar, its effect upon ma^ets, 



196 

 ■ , its influence on regetation, 



218 



, its effect upon plants, 437 



, natural and artificial, 375 



^irae, chlorides of, their use in cases of 



plague, 216 

 Line, ships of, their force, construction^ 

 ' and sailing qualities, 336 

 Linnaeus, on the varieties of oaks, 76 — 



on the anatomy of fishes, 289 

 Liquids, motion of currents in, 194 

 Literature, Egyptian, fragments on, 



111,349 * 

 Lithotrity, observations on, 390 

 Lives, tables of, 377 

 London, increased population of, 377 

 Loriot, M., singular case of, 433 

 Luminous points in the horizon, 219 



M. 



MacCuUoch, Dr. J., on the coal-field of 

 Sutherland, 40 



AlacLeay, quinary circles of, 371 



Mageiidie, M., experience of, 10 



JMagnesia, metal of, 417 



Magnets, properties of, 183 — effects of 

 solar light upon, 196 



Mammalia, remarks on, 362 



Manby, Capt., on the means of pre- 

 serving lives in cases of shipwreck, 

 398 



Manetho, statements of, 116 



Manometer, preparation of, 192 



Marcet, Dr., 30, 36, 37, 40 



Marianini, Professor, on electric cur- 

 rents, 197 — on physiological pheno- 

 mena produced by electricity, 214 



Marini, inscriptions collected by, 307, 

 314 



Mariotti, law of, 191 



Marshall, Commander, his new mode 

 of mounting and working ships* 

 guns, 140 



Martin, ]\Ir., analysis of, 264 



Matteucci, M. C, 216 



Mechanical Science, 191, 407 



Meconic acid, process for procuring, 68 



Medicinal substance, new, 216 



Mellitic acid, analysis of, 413 



Mercury, bi-iodide of, its preparation 

 and properties, 208 



, new compound of, 209 



Merritt, Mr., on proper names, 270 



Metallic sulphurets, experiments on, 

 205 



Metallic sulphurets, observations on, 

 205 



Metals, adhesion of, 196 



, heated, effect of ammoniacal 



gas upon, 200 

 Meteorological Diary, for December, 



January, and February, 220 



for March, April, and 



May, 441 



Mexicans, iheir hieroglyphics, 314 



Mice, experiments upon, 9, 13, 15, 18 



Microscopes, alterations in their con- 

 struction, 86 



Microscopic doublet, commentary on, 

 248 



Miles, Mr., 2 



IMiscellaneous Intelligence, 191, 407 



Mitchell, Dr., his method of working 

 caoutchouc, 407 



Mitscherlich, M., 204 — on fuming 

 nitric acid, 412 



Moll's experiments, 169 



Mont Blanc, ascent and descent of, 384 



Morgan, Octavius, Esq., 190 



Morphia, discovery of, 56 



Mullets of the coast of Guiana, 125 - 



iMuriates of vegeto-alkalies, double 

 compounds of, 212 



Murray, Dr., the eminent linguist, 

 276 



, John, experiments of, 56 



, Mr., 2 



Musical instruments, new principle in 



their construction, 397 

 Mutis, Don Celestino, 333 

 Muyscas, language of, 305 



N. 



Names, proper, remarks on, 270 



Narcotine, force of, 57 



Natural history, 213, 432 



Nature, illustrations of, 367 



Naval ordnance, on the mounting of, 



140 

 Neophytus, scholion of, 325, 326 

 Nervous system, proportion between 



and other parts, 432 

 New Forest, plantations in, 77 

 Newton, on the cause of gravitation, 



167— on the earth's figure, 385 

 Nichols, on oak trees, 77 

 Nickel, preparation of pure oxide of; 



420 

 Nicol, Dr., on rock-salt, 202 

 Nitrate of silver, reduction of, 210 

 Nitric acid, on fuming, 412 

 Nitrogen, experiments with, 14 

 Nitrous gas, experiments with, 18 

 Nitrous-oxide gas, experiments with, 1 j 

 Nouns, vocative of, 226 

 Nubian temples, names of, 350 

 2G2 



