150 INDEX. 



Oxygen and sulphur, account of a new acid of, vii. 371. Results 

 of -the combfnatlon of, with water, 379. On the evolution of 

 light by the expansion of, 384. 



— — — gas, combined agency of, and water in the oxidation of 

 iron, vii. 55. 



> and alkalies, effects of the simultaneous application 



of, and alkalies on organic substances, xx. 388 



Oxygenated water, observations on the preparation of, viii. 114 



■ — — efficacy of, in restoring white in pictures, x. 168 



Oxymuriate of lime, experiments on, vii. 182 



Oxymuriatic salts accelerate and increase the growth of vege- 

 tables, X. 59 



Pacos, or red silver ore, of Peru, analysis of, xi. 273 



Paint (green), for coarse wood work, xii. 407 



Paintings, process for restoring the white in, x. 168 



■ on pottery, experiments on, xvi. 156 



Pajot des Charmes (M. C), notice of the new-coloured test pa- 

 pers invented by, xvi. 380 



Palacio Faxar (M.) on the alstenia teiformis, ii. 92, Experi- 

 ments made by him upon it, 93. His description of the river 

 Meta, 139. Account of the earthquake of the Carraccas, 400 



Palladium, fusion of, with the blowpipe, ii. 108 



Pallas (Professor), opinion of, respecting the origin of mud-vol- 

 canoes, i. 246 



Palm- wine, chemical experiments on, vii. 388 



Palotta (M.), experiments of, on parilline, xix. 163 



Palsy, case of, cured by lightning, xiii. 419 



Pamplona (province), notice of, iii. 338 



Panapana (village), notice of, viii. 261 



Pancratium, genus, review of, iii. 316 



Paper-string, notice of, vi. 140 



new substance for, vii. 371 



Papyri of Herculaneum, notice of Sir H. Davy's experiments and 

 observations on, xii. 367 



