» Gold and silver: comprising an economic history of mining in the United States, the geographical and geological occurrence of the precious metals, with their mineralogical associations, history and description of methods of mining and extraction of values, and a detailed discussion of the production of gold and silver in the world and the United States
Gold and silver: comprising an economic history of mining in the United States, the geographical and geological occurrence of the precious metals, with their mineralogical associations, history and description of methods of mining and extraction of values, and a detailed discussion of the production of gold and silver in the world and the United States
