Abstract
THE Journal of the Scottish Meteorological Society, which has recently been published, contains, in addition to copious tables of the meteorology of 1885, several papers of more than usual interest. Prof. Piazzi Smyth leads with a suggestive paper on hygrometric observation, based chiefly on observations made by him in the neighbourhood of Malvern in the summer of 1885, on fifteen successive days, at 9 a.m., in June, at a height of 125 feet; and subsequently for twenty successive days at the same hour but at a height of 350 feet. Scrupulous care was-taken to have the dry-bulb surrounded with air as nearly as possible of the same quality as that of the free atmosphere outside, by placing a large and tall black iron chimney on the top of the Stevenson screen, according to Mr. Aitken's idea of promoting a current inside the screen; and to have the wet-bulb as perfect as-possible by enveloping it in thin muslin, tightly drawn over its-surface, and by securing that it was always thoroughly wet for each observation. The results gave for the lower station a mean depression of 3°.4 of the wet- below the dry-bulb; and 6°.4 for the upper station. It is probable that these results would be found to be higher than what obtained at the three or four stations in Central England nearest to Prof. Smyth's at the same dates; and without a doubt the value of the inquiry would have been enhanced if such comparisons had been made and recorded in the paper.
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The Scottish Meteorological Society 1 . Nature 35, 355–356 (1887). https://doi.org/10.1038/035355b0
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DOI: https://doi.org/10.1038/035355b0