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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. Access through your institution Buy or

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are calculated during checkout ADDITIONAL ACCESS OPTIONS: * Log in * Learn about institutional subscriptions * Read our FAQs * Contact customer support Authors * HAROLD JEFFREYS View author

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Production of Rain. _Nature_ 108, 313–314 (1921). https://doi.org/10.1038/108313a0 Download citation * Issue Date: 03 November 1921 * DOI: https://doi.org/10.1038/108313a0 SHARE THIS ARTICLE

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