History of Amador County, California

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. The chapters on geology and mining,' will, it is hoped, furnish interesting and profitable reading to all, especially those engaged in mining. The facts and theories are the result of years of Observation, and many miles of travel, and are not retailed at second hand from W'hitney or other scientists. The Observations on mining have been compiled from the statements, Opinions and experiences, of hun dreds of intelligent miners. Thanks are due to all the superintendents, especially to those of the Ama dor Consolidated, the Keystone, the Oneida, the Empire, the Downs and the Zeile mines for valuable information on gold mining, and to Edward Johnson of the Newton mine, for statistics and methods of copper mining.