This paper presents a study on the importance of copper production in the State of Sonora, Mexico. Important data will be presented with total relevance to the current economic framework in which it will be possible to determine through a thorough investigation the reason why Sonora as a state...

Preface -- Contents -- Opening the Michigan Lodes, 1845-1866 / Taussig, Frank William -- Michigan Dominates the United States market, 1867-1884 / Johnson, President -- The struggle for Domestic and World leadership 1885-1904 / Jr, W. B. G., -- Labor and the community to 1904 / Richard, T. A. /...