55 ^ INDEX. 



Academy, prize-questions of, v. 360, 361-378 



Acceleration of the pendulum in different latitudes, notice of ex- 

 periments for determining, xii. 363-367 



Accum's (Mr.) treatise on coal gas, notice of, vii. 317 



— evidence of, with remarks in the cause of Severn and 



Co. against the Imperial Insurance Company, x. 332, 333 



Acetate of lead, new ore, viii. 379, 380 



— — of alumine, ix. 182 



— of lime, phosphorescence of, xvii. 163. Of morphia, 



how detected in cases of poisoning, 168-170. Of copper, 383. 



Acetic acid, experiments to ascertain the strength of, vi. 258-261 



Acetometer, principles of the construction of, vi. 255-262 



Aching, sense of, how produced, ii. 16, 17 



Achromatic telescope of the Royal Observatory at Paris, xx. 286 



Acids, on the constitution of, i. 287, 288. Composition and com- 

 binations of phosphoric acid, 291 



■ and sulphuretted hydrogen gas, experiments on the mu- 



tual decomposition of, ii. 152, 153 



' substance, experiments, and observations on a new one 



generated from ether, iii. 77-81 

 ' researches concerning. Acetic, vi. 258-261 ; benzoic. 



152; boracic, 152; gallic, 154; malic, 153; oxy-acids, new, 

 152 ; sorbic, 153. What acids are useful or hurtful in calculous 

 disorders, 200 ; — their probable mode of acting, 203. Account 

 of the acid formed by the slow combustion of ether, 318-326 

 new, of sulphur and oxygen, account of, vii. 371-375. 



Caseic acid, notice of, 389,390. Pyroligneous acid, 391. 



of arsenic, composition of, viii. 378 



— — . of the French Pharmacopoeia ^ observations on, ix. 242-244 

 action of an oxide of gold, x. 118. Benzoic found in 



melilot and Tonquin bean, 173. Pyroligneous, antiseptic 



power of, ibid, 174, 175. Of manganese, experiments with, 



175-179. Boracic, analysis of, 196. Fluoric found in mica, 196 



new, produced by the distillation of citric acid, xiv. 422. 



Properties of the pyro-citric acid, 423-425 ; its constituent 

 parts, 436. Experiments on the combination of acetic acid 

 and alcohol with the volatile oils, 425-427 



