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Calendar of Discovery and Invention


March 7, 1785.—Among the landmarks in the history of geology was the publication of James Hutton's “Theory of the Earth: or an Investigation of the Laws observable in the Composition, Dissolution, and Restoration of Land upon the Globe,” read to the Royal Society of Edinburgh on Mar. 7 and April 4, 1785. It attracted little attention at the time, but ten years later Hutton published his views in two volumes, and in 1802 Playfair wrote his “Illustrations of the Huttonian Theory of the Earth.”

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