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1
Cause of floor self-heatings in an underground coal mine
“…United States. Bureau of Mines…”
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2
Assessing the methane hazard of gassy coals in storage silos
“…United States. Bureau of Mines…”
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3
Direct method determination of the gas content of coal procedures and results /
“…United States. Bureau of Mines…”
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4
Methane content and geology of the Hartshorne coalbed in Haskell and Le Flore Counties, Okla.
“…United States. Bureau of Mines…”
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5
Reducing hazards in underground coal mines through the recognition and delineation of coalbed discontinuities caused by ancient channel processes
“…United States. Bureau of Mines…”
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6
Investigation of coal deposits for local use in the arctic regions of Alaska and proposed mine development /
“…United States. Bureau of Mines…”
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7
Low-temperature distillation yields of primary tar and light oil from coals of various ranks and types /
“…United States. Bureau of Mines…”
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8
Sampling and coking studies of several coalbeds in the Kokolik River, Kukpowruk River, and Cape Beaufort areas of arctic northwestern Alaska /
“…United States. Bureau of Mines…”
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9
Coal reserves of eastern Kentucky /
“…United States. Bureau of Mines…”
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Government Document Online Book