clay Report on the clay deposits of Boulder County. Times May 26, 1899 p.6 c.1 Report on clay deposits in Boulder County. New clay deposit near Buckhorn. Times Mar. 8, 1900 p.2 c.4 Good substitute for fuller's earth found. Times Mar. 13,.1900 p.3 c.1 Col. L.P. Hoyt has discovered clay deposit; only one known to exist in U.S. other than in New Jersey. Silver Stand.0 28, 1893 p.1 c.6 0
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