Abstract
IN connection with Prof. Leonard Hill's very interesting and instructive article on “Healthy Atmospheres” (NATURE, April 22), perhaps I may be allowed to direct attention to a paper which I contributed to the Journal of the Scottish Meteorological Society for 1912, entitled “On-Atmospheric Cooling and, its Measurement 5 An Experimental Investigation.” In that paper will. be found a description of an instrument termed a psuchrainometer (ψνχπαiνω = I become cold; and μiτρoν = α measure) which traces on a moving paper strip, a continuous record of the amount of electrical heating needed to maintain at blood heat a body freely exposed to the atmosphere. This seems to serve much the same purpose as Prof. Hill's caleometer. In the same paper I also gave a table of preliminary numerical results obtained by its use in conjunction with an anemometer and self-recording thermometer, and from these data deduced an empirical formula giving the rate of cooling (ψ) as a function of temperature and wind velocity.
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MILNE, J. Man's True Thermal Environment. Nature 95, 260 (1915). https://doi.org/10.1038/095260a0
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DOI: https://doi.org/10.1038/095260a0
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