INDEX. ^ 



Gallic acid, observations on, vi. 154 



■ — experiments on, vii. 178 



• conversion of, into ulmin by oxygen gas, xix. 363 

 Galls from China, experiments on, iii. 130 



Galvanic action, experiments on, iii. 207 



— pile of Zamboni, strictures on, ii. 161. Vindication of 



those remarks, 449 



• experiments on the body of a criminal after execution, 



vi. 288 



Galvanism, benefit of, in asthmatic dyspnoea, ii. 458 



observations on the agency of, viii. 72-87 



. proof of the identity of, with nervous influence, xi. 261 



■ — effects of, on the nervous system, xiv. 105 



Galvanometer (new), notice of, xx. 170 



GARPBN(jVIr. Alexander j, evidence of, in the cause of Severn and 

 Co. versus the Imperial Insurance Company, x. 348 



Gardening, historical sketch of the progress of, in ancient and mo- 

 dern times, x. 52. Its influence on society, 55 



Gardens of Lahore described, ix. 311 



Gardiner (Lieut. F.), notice of a life-boat, invented by, vi. 331 



Garlic, experiments on, iii. 186 



Garnet, analysis of the, vii. 401. xii.329 



Garnett (Mr.), observations of, on the production of ice at the 

 bottom of rivers, v. 268 



Gas apparatus, account of Mr. Clegg's improvements in, ii. 13B 



lights employed in London, iii. 216 



on the production of, from oil, vi. 108. viii. 120. xiii. 423 



a new inflammable one discovered, vi. 153. Procured from 



turf, 157 



retorts, observations on, vi. 71 



■ illumination, facts relating to, vii. 312. Advantages of oil 

 gas over that obtained from coal, 315. Notices of Mr. Accum's 

 treatise on coal^as, 317; and of Mr. Peckston's treatise, Sit 



lamp (portable), described, viii. 233 



> lighting, improvements in, x. 464 



— — tubes lined with lead, benefit of^ 170 



G 2 



