84 INDEX. 



Gas-tar, useful green paint made from, xii. 407. 



— - from oil and coal, experiments on, xii. 135. Successful 



application of gas to the illumination of the clock dial of the 



Tron Church at Glasgow, 229 

 — — obtained from coal-tar, xiii. 227 



— lighting in London, extent of, xv. 367 



— — evolution of, during metallic precipitation, xvi. 168. His- 

 torical statement of the liquefaction of gases, 229. Correction 

 of the bulk of gases for temperature, 378 

 — - hydrogen, the odour of, proved to be extraneous, xvii. 380 



inflammable, inspiration of, xx. 393. 



correction of an error in the expansion of, xx. 294 



Gascony, notice of, the wines of, xviii. 129 

 Gases, intestinal, experiments on, ii. 185 



■ experiments on the escape of, through capillary tubes, iii. 

 354. vii. 106 

 " on the specific gravity of, vii. 187 



■ specific heat of, ix. 400 



— new test for ascertaining the dryness of, xv. 160. Con- 



densation of into liquids, 74, 163. xvii. 123. On the ap- 

 plication of liquids formed by such condensation, as mechanical 

 agents, 125. 



Gaseous mixtures, action of platinum on, and its application to 

 their analysis, xix. 101 



Gasking (Thomas), mathematical talent of, vi. 132 



Gauge, pyrometrical, account of, vii. 384 



Gauss (M.), notice of a new signal invented by, for trigonome- 

 trical measurements, xiii. 421 



Gay-Lussac (M.), claim of, as the first discoverer of iodine, re- 

 futed, i. 284. Note. Strictures on his classification of unde- 

 composed substances, 285. Remarks on his nomenclature, 288. 

 Confirmation of his researches on the prussic basis and acid, 

 288 



on the dilatation of liquids, ii. 163 



— observations of, on the solvent property of the acid 



tartrate of potassium, iii. 213 



