INDEX. 211 



resultg on the combination of, with oxygen, 879. Weight of, 

 and air, 3S0 

 Water, mode of preserving sweet, suggested by Mr. Henry, viii. 7. 

 Analysis of the waters of the Dead Sea, and of the river Jordan, 

 164. Preservationof,at sea, 166. Analysis of sea-water, 167 

 ■ force of a jet of, ix. 171. Simple mode of purifying, 

 186 



• on the compressibility of, x. 899 



— thickened by fire, xii, 58 



experiments on the evaporation of, xiii. 58. Singular 



congelation of, 228. On the influence of, on certain animal 

 productions, 418. Analysis of the mineral and thermal waters 

 of St. N^ctaire, 396 ; and those of Mount Dore, 417. Purifi- 

 cation of the waters of the Seine, 423 

 action of, on metallic arsenic, xiv. 233. On the effects 



of boiling water, 237 



■ hydraulic instrument for raising, xv. 137. Change of, at 



falls, 172. Maximum density of, 372. xix. 149 



action of phosphorus on, xv. 383 



— notice of an optical instrument for examinations beneath 



the surface of, xviii. 167. Impermeability of glass to water 

 demonstrated, 168. Source of the exhalation of water during 

 inspiration, 192 



globules of, found in amethyst, xx. 187. Action of. 



upon glass, 259. Use of, in the formation of lead plaster, 400 

 Watering-places, remarks on, xiv. 363 

 Water-proof cloth, notice of, xvi. 155 



ram, an hydraulic machine described, i. 211 



retting of hemp and flax, process of, described, iv. 



326 



■ spout, notice of, v. 134 

 extraordinary, notice of, vi. 162 



wheels (horizontal), observations on those of the ordinary 



construction, iv. 46. Description of a new patent one, and the 

 principles of its action, 47 



Watt (Mr.), biographical memoir of, viii. 136 



P 2 



