Author: DAY, David T.
Title: Mineral Resources of the United States. Calendar Year 1905.
Description: Washington: Government Printing Office, 1906. 8vo. 1403[1]pp, text figure and tables. Original cloth gilt. Extremes rubbed, hinges easing. * This copy is signed on the front free end paper recto 'John S. MacArthur, 7th May, 1907'. MacArthur was the inventor in 1887, with his fellow Scottish chemists Robert W. Forrest, and William Forrest, of the MACARTHUR-FORREST PROCESS, a method of extracting silver and gold from their ores by dissolving them in a dilute solution of sodium cyanide or potassium cyanide.

Keywords: geology SCIENCE & TECHNOLOGY Mineralogy ECONOMICS


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