Abstract
THE only points in Dr. Graaff Hunter's letter to which I need refer are (1) the objection raised against taking the refractive-index gradient for the lower levels of the atmosphere as being identical with that which would make µ= 1 at the height of the homogeneous atmosphere, and (2) the statement that “conduction” of heat extends to a height of 300 ft. above the ground.
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MALLOCK, A. [Letters to Editor]. Nature 107, 745 (1921). https://doi.org/10.1038/107745b0
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DOI: https://doi.org/10.1038/107745b0
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