Oxygen Content of the Stratosphere

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AIR from different heights of the stratosphere was brought down by registering balloons by means of a new device for air sampling. As the apparatus was protected against the low air temperature in the stratosphere by a ” Cellophane” case, it was possible to employ ordinary stop-cocks. At the desired heights the latter were operated by an electrical arrangement actuated by aneroids. The glass vessels for air sampling were constructed so that the oxygen content could be determined in them by means of heating metallic copper without it being necessary to change the vessel. Before and after heating the copper the volume was brought to the same level, so that the diminution of pressure divided by the initial pressure immediately gives the oxygen content.

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  1. 1

    F. A. Paneth and E. Glückauf, NATURE, 136, 717 (1935).

  2. 2

    A. Lepape and G. Colange, NATURE, 137, 459 (1936).

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