INDEX. 



Acid, amvHc, a new compound, 444 

 pinic, a constituent of Venice 



turpentine, 445 



. silvic, 446 



Acids, on dissolving metals in, 217 

 Addams, R., Esq., on the use of gas, 135 

 • on tlie sap of the rose-tree, 



147 



on the elevation of water, 332 



Addison, Mr. W., on the nature and 



properties of the Malvern water, &c. 



reviewed, 123 

 Adipocire, formation of, 226 

 Aerolite, fall of a, 233 

 Aerolites, contained in hail, 457 

 Air, method of collecting, 20C 

 Alabaster, method of hardening, 198 

 Alcoates, production and nature of, 442 

 Alcohol, volatilization of, 223, experi- 

 ments on, 224 

 Aloetic acid, nature of, 223 

 Altmutter, M., 426 

 Alumen, vegetable, 221 

 Aluminum, preparation and properties 



of, 209 

 Amici, professor, microscopes of, 193 

 Ammonia, its action on heated metals, 



205 



> nitrate of, 216 



muriate of, in Turkistan, 232 



Animalcule, luminous, account of, 383 



Antediluvian remains, 309 



Apes, observations on, 300 



Arago, Mr., experiments of, 174, 178, 



180, 182, 185, 389 

 Arch, triumphal, 272 

 Aristotle, his observations on cetaceous 



animals, 10 

 Arsenic, sulphuret of, 213 



reduction of, 214 



• white, opaque and transpa- 

 rent, 214 

 Artificial Changeling, extracts from, 83, 



84 

 Arverni, opponents of the Romans, 270 

 Asparagus, fine specimens of, 165 

 Astronomical and Nautical Collections, 



168, 389 

 Atmosphere, effects of the, 90 

 Aurelian, triumphal arch dedicated to, 



272 

 Aiu-ora Borealis, height of the, 448 

 Auvergue, volcauic character of, 272 



Ava, attempt to prove that it was the 



Ophir of Solomon, 141 

 Aviaries, ornamental, observations on, 



100 



Banks, Sir Joseph, anecdote of, 249 

 Bark, on the use of, in fevers, 56 

 Barometer, improvement in the, 195 

 Barometric pressure, effect of the moon 



on, 195 

 Bass islands, cave in the, 378 

 Baynton, Sir Henry, healthy state of 



his crew, 66, 72 

 Becquerel, I\l., experiments by, 201 

 Beechey, Captain, 334 

 Bee-hive, model of one, 166 

 Behring's Straits, remarks on some re- 

 mains of elephants found at, 334 

 Benzoic acid, found in grass, 231 

 Berard, M., experiments by, 217 

 Berthier, M., saline compounds ob- 

 tained by, 436 

 Berzelius, M., 219 



his preparation of tannin, 220 



his examination of gluten, 221 



table of atomic weight of bo- 

 dies by, 432 



pluranium described by, 439 



on amber, 447 



Best, Mr., experiments of, 170, 185, 

 186, 188, 191, 389 



his opinion on magnetism. 



429 



Bigsby, John, his description of Lake 



Erie, 358 

 Birds, fit for an aviary, 104 



method of preserving, 229 



Blood of animals, varies in colour, 15 



Blubber of the whale, 16 



Bodies, table of atomic weight of, 432 



Bolton, Captain, 376 



Bonaparte, anecdote of, 255 



Booth, Henry, suggestions of, 159 



Boracic acid, decomposition of, 434 



Borax, new variety of, 209 



Bose, M., on a new kind of salad, 450 



Bourgeois, M., 227 



Brady, Dr., 253 



Branches, Chinese method of planting, 



230 

 Brandes, ]\r., on the absorbent powers 



of salts, 441 

 Brass wire, its alteration in the air, 204 



