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Mining Petroleum by Underground Methods: A study of Methods used in France and Germany and Possible Application to Depleted Oil Fields under American Conditions

Description: From Introduction: "That the percentages of extraction of petroleum from the ground may and undoubtedly will be greatly increased in the future by underground mining methods where natural conditions will permit seems logical. The limitations imposed by depth, temperature, and flow of water under high pressure through the sands will be discussed later."
Date: 1932
Creator: Rice, George S.

Coal Mining in Europe: A Study of Practices in Different Coal Formations and Under Various Economic and Regulatory Conditions Compared with Those in the United States

Description: From Introduction: "The major purpose of this bulletin, as indicated in the preface by Dr. John W. Finch, Director of the Bureau of Mines, is to give a critical review of the coal-mining methods used in the principal producing countries of Europe, to describe the reasons underlying the adoption of these methods, and to contrast them with coal-mining methods employed in the United States."
Date: 1939
Creator: Rice, George S. & Hartmann, Irving