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Classification chart of typical coals of the United States :showing B.t.u. per pound on the moist, mineral-matter-free basis, plotted against fixed carbon on the dry, mineral-matter-free basis

Evaluation of an acid-extraction method for determining mineral matter in American coals

Production of mineral fuels and hydropower in the United States since 1800

Published Year

• 1930-1939 (1)
• 1950-1959 (1)
• 1960-1969 (1)

Subject

• Coal--United States (3) *
• Coal--Analysis (1)
• Natural gas--United States (1)
• Petroleum as fuel (1)
• Petroleum--United States (1)
• Water-power--United States (1)

Author

• Fieldner, Arno Carl, (1)
• Frederic, W. H. (1)
• Gooding, Richard Morgan, (1)
• Ode, W. H. (1)
• Selvig, W. A. (1)
• Tarpley, Edward C. (1)

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