The book of the sky; a résumé of personal experience and observation (1922)
Luckiesh, Matthew, b. 1883 · New York, E. P. Dutton & Company · leaf 140
to theirrelative weights. The content of water-vapor in the lower atmos-phere varies considerably, but decreases with alti-tude, so that the absolute humidity is practicallyzero at altitudes above seven miles. The temperature decreases rapidly with eleva-tion but varies for different places and… … A POLAR CLIMB 105 sonal cHanges at the earths surface. In fact,above seven miles in the latitudes of the UnitedStates, the temperature changes very slightly withelevation in the region which has been explored bymeans of small balloons equipped with instru-ments. This region is called the…
Atmosphere, Upper · Clouds · Aeronautics
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