Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 346
e is illustrated in Fig. 107. Itconsists of a U-tube made of i/2-inch glass, surmountedby two larger tubes, or chambers, each having a diameterof 2y2-inch. Two different liquids which will not mix,and which are of different color, are used. The movement Evaporation Tests 333 of the line of… … /\/\ (D
