14 INDEX. 



Arctic voyage of Captain Parry, account of, x. 355-361 

 Areca catechu, analysis of the fruit of, xv. 317 

 Arenaceo-calcareous substance, found near Delvine in Perthshire, 



account of, xvi. 79-84 

 Arfwedson (M.), process by, for preparing lithia, xiii. 224, 225 

 his mode of preparing the pure oxide of uranium, xvii. 



382. And uranium pyrophori, 383 

 ' experiments of, on the decomposition of sulphates by 



hydrogen, xviii. 392-394 

 Argonauta argo, notice of, xx. 189 

 Argyleshire, scenery of, described, xiii. 181 

 Aria cattiva, near Rome, observations on, iv. 87 

 Arnott (Dr. N.), on the construction of fire-places, vi. 364- 



367 

 Arragonite, difference between the optical properties of, and of 



calcareous spar, iv. 112-114 

 Arsenic (white) observations on, vi. 341, 342 

 — composition of the acids of, viii. 378 



sulphuret of, a new yellow dye from, ix. 184 



• antidote to the poison of, x. 193 



^ test for, xii. 411. On the detection of, in ores of anti- 



mony, 412 



action of water on metallic, xiv. 233 



nickel and cobalt amalgamated by, xvi. 166 



detection of, in cases of poisoning, xvii. 165 



test for the presence of, xx. 398, 399 



Arsenious acid, tests for, xi. 341 



Arseniuretted hydrogen, new mode of preparing, xiii. 225 



Art, fragment of, discovered in Newfoundland, xi. 223 



' notice of remains of, in a limestone formation, xii. 191 



Artephius, an alchemist, notice of, ix. 225 



Arteries, experiments on tlie action of, on circulation, iii. 178 



Articulations of particular words, observations on, xix. 10-16 



Artificial gold, notice of, xx. 399 



Artillery, account of a new piece of, xviii. 380 



Arts, the fine, progress of at Rome, v. 147, 148 



— ^ prize questions in, vi. 138 



