Properties of Typical Crude Oils From Fields of the Eastern Hemisphere (open access)

Properties of Typical Crude Oils From Fields of the Eastern Hemisphere

From Introduction: "The analyses in this bulletin offer a means for judging the relative values of the foreign crude oils compared with familiar crude oils of the United States that have been analyzed by the Bureau of Mines method."
Date: 1937
Creator: Kraemer, A. J. & Lane, E. C.
System: The UNT Digital Library
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 (open access)

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

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
System: The UNT Digital Library