Abstract
IN an article in the Times of October 17 an account is given of the achievements ot Mr. Charles M. Hatfield in producing rain. The method used is not described in any detail. A tank filled with certain unspecified “chemicals” was exposed at a height of 25 ft. above the ground, and it is claimed that this had the effect of producing 8 in. of rain in three months at Medicine Hat, 22 miles away. The theory of the method is that the apparatus draws clouds from other parts to the Medicine Hat district and causes them to precipitate their moisture there. No direct observations of the motions of clouds are mentioned in confirmation of this theory, though they should not have been difficult to obtain.
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JEFFREYS, H. Artificial Production of Rain. Nature 108, 313–314 (1921). https://doi.org/10.1038/108313a0
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DOI: https://doi.org/10.1038/108313a0