Robinson, H. P. (Henry Peach), 1830-1901, author, Abney, William de Wiveleslie, Sir, 1843-1920, author, Piper & Carter, publisher · London : Piper & Carter · leaf 33
21 PURIFYING THE SOLUTION. be applied to other solutions where decantation is necessary. A is a wide-mouthed bottle holding the solution. B is a cork fitting the mouth, in which two holes have been bored to fit the two tubes, D and C, which are bent to the form shown. When the … kaolin has subsided to the bottom, air is forced by the mouth into the bottle through C, the liquid rises over the bend of the tube D, and syphons off to the level of the bottom of the tube inserted into the liquid, provided the end of D, outside the bottle, comes below it. To bend a tube, a common…
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Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.