Elements of chemistry : including the applications of the science in the arts . with the water. (See Dr. Lardneron the Steam-Engine : Cabinet Cyclopcedia.) The subject of distillation is a natural sequelto vaporization; but it is unnecessary to enterinto much detail. The principal point to beattended to is the most efficient mode of con-densing the vapour. Figure 29 represents theordinary arrangement in distilling a liquid froma retort a, and condensing the vapour in a glassflask b, which is kept cool by water droppingupon it from a funnel above, c. The condensingflask is covered by bibulous p
Elements of chemistry : including the applications of the science in the arts . with the water. (See Dr. Lardneron the Steam-Engine : Cabinet Cyclopcedia.) The subject of distillation is a natural sequelto vaporization; but it is unnecessary to enterinto much detail. The principal point to beattended to is the most efficient mode of con-densing the vapour. Figure 29 represents theordinary arrangement in distilling a liquid froma retort a, and condensing the vapour in a glassflask b, which is kept cool by water droppingupon it from a funnel above, c. The condensingflask is covered by bibulous paper, so that ti;ewater falling upon it may be made to pass 1 For the mathematical theory of the steam-engine, see a Memoir on the Motive Power ofHeat, by E. Clapeyron, Taylors Scientific Memoirs, vol. i. p. 347; a Memoir on the Heatand Elasticity of Gases and Vapours, by C. Holtzmann, ibid. vol. iv. p. lGil • Experimentson the Expansive Force of Steam, by Prof. G. Magnus, ibid. p. 213 ; and on the Force requi-site for the Production of Vapours, by the same, ibid. p. VAPORIZATION. (6 equally over its surface, and it is supported in a basin likewise containing coldwater. But a much superior instrument to the condensing flask is the condensing tubeof Professor Liebig (). This is a plain glass tube, t t, about thirty inches in Fig. 30.
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