446 



INDEX. 



Guaco, powers of, 333 

 Guiana, fishes of, 125, 293 

 Guinea.pig, experiments upon, 5 

 Guns, new mode of mounting and 

 working, 140 



H. 



Hachette, M., 199 



Haloid salts, 95 



Hancock, Dr., his observations on the 

 mullets of the coast of Guiana, 125 

 — on the composition of the fin rays 

 and other parts in the anatomy of 

 fishes, 287 — his remarks on snake- 

 poisons and their remedies, 330 



Harry Grace de Dieu, the famous ship, 

 142 



Hayes, M. A,, on bi>iodide of mercury, 

 208 



Heat, radiation of, 378 



Hebrews, names in use among, 272 



Henniker, Sir T., sarcophagus of, 112 



Henry, Dr., of i\Ianchester, 30 



Hehsiow, Professor, on the mean ele- 

 vation of the sea, 25 



Herapath, John, on the velocity of 



' sound, and variation of temperature 

 and pressure in the atmosphere, 167 



Herponitherae, illustrations of, 362 



Herschel, Mr., his treatise on light, 

 257 — on microscopic doublets, 266 



, Sir W., 253 



Hertwich, Dr., his experiments on 

 rabid dogs, 435 



Heurteloup, Baron, 394 



Hippuric acid, 425 



Home, Sir Everard, 362 



Horizon, luminous points in, 219 



Hoi'ner, Mr., observations of, 28 



Howitzer shells, experiments with, 194 



Humboldt, W. von, 315 — on the sys- 

 tems of numerical signs used by dif- 

 ferent nations, and on the origin of 

 the expression of value by position 

 in the Indian numbers, 300 



Hume, Mr., 333 



Huygenian eye-piece, 263 



Hydrate of bromine, 199 



Hydrogen, carbui*etted, experiments 

 Avith, 18 



, gas, experiments with, 17 



, sulphuretted, expei'iments 



with, 16 



Hydrophobia, communication of, 435 



Hygroscope, new, 195 



I. 



Indigo, observations on, 160 



Indigo and the fixed oils, their reci- 

 procal action, 243 



Inflections of speech, 221 



Intelligence, Miscellaneous, 191, 407 



Iodic acid, new mode of preparing, 410 



and morphia, their mutual 



action, 422 



Iodine, detection of, 200 — chloride of, 

 411 



Ireland, survey of, 384 



Iron, ammoniated, 202 



, crystals of oxide of, 204 



, cyanide of, 97 



, permuriate of, 62 



, composition of, 204 



Isis, name of, 113 



Ivory, Mr., 170 



J. 

 Johnson, Dr., of Berwick, 108 

 K. 



Kater, Captain, his pocket azimuth 

 and altitude instrument, 176 — his 

 equatorial instrument, 406 



Keeper Mountain, 388 



KircholF on the preparation of cinna- 

 bar, 431 



Kittens, experiments upon, 3, 4, 14, 

 17,18 



Labarraque's, disinfecting fluid, 124 



Lagidae, double dates of, 351 



Lambert, on the mensuration of light, 

 375 



Lamarck, system of, 109 



Lampadius, on cobalt, 208 



Languages, structure of, 221 



Laplace's formula, 172 



Largo Bay, submarine forest in, 21 



Lassaigne, experiments of, 56 



Lassen, M., researches of, 327 



Latreille, M., the entomologist, 110 



Laugier, M., process of, 208 



Lavoisier, experiments of, 9 



Leach, Dr., the zoologist, 107 



Lenses, remarks on, 257 



Leslie, Mr., his philosophy of arithme- 

 tic, 312— his photometer, 376 — ex- 

 periments of, 380 



Letters, affinities of, 225 » 



Leuchs, M., on the effects of light on 

 plants, 437 



Liebeg, M., on a new acid contained in 

 the urine of herbivorous animals, 

 424. 



