...desirable to describe the original pump. The original type of pump is shown diagrammatically in Fig. i. In this device a blast of mercury vapor passes upward...to be exhausted. The tube C is enlarged into a bulb H just above the upper end of the tube B. This enlargement is surrounded by a water condenser / from...

..."mercury vapor pump"1 makes use of the principle of the aspirator (§ 193) in a novel form. A current or " blast " of mercury vapor passes upward from the heated flask, A, through the tubes B and C (Fig. 134) into the condenser D. An annular space, E, surrounding B is connected through F with the...

...abstract I omitted to make this acknowledgment owing to a desire to condense 50 IRVING LANCMVIR. (SEMI* In this device a blast of mercury vapor passes upward...annular space E connecting through F and the trap C with the vessel to be exhausted. The tube C is enlarged into a bulb H just above the upper end of...

...with a pump in which the slit had been discarded and diffusion took place through a wide opening. I therefore constructed my own pump with a wide opening...to be exhausted. The tube C is enlarged into a bulb H just above the upper end of the tube B. This enlargement is surrounded by a water condenser / from...

...desirable to describe the original pump. The original type of pump is shown diagrammatically in Fig. i. In this device a blast of mercury vapor passes upward...to be exhausted. The tube C is enlarged into a bulb H just above the upper end of the tube B. This enlargement is surrounded by a water condenser / from...