Excerpt from The Structure of the Atmosphere in Clear Weather: A Study of Soundings, With Pilot Balloons
The investigation of the Wind currents of the air above the surface layers is one of the greatest importance in the study of meteorology; one reason for the Slow advance made by this science in the last fifty years is to be found in the fact that until quite recently meteorologists only took note of that part of the atmosphere that was close to the surface Of the earth, and beyond some cloud Observations and a few isolated records, such as those obtained by Glaisher, nothing was known of the conditions existing in the free air. The recent rise Of aviation and its probable extension in the near future make it more than ever necessary to investigate the nature of the currents in the free air above the surface Of the earth.
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