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36 (XXXVI) — 1925-1926
U.S. Accidents, 59, 123.
U.S. Anthracite Strike, 88, 248.
U.S. Coal Output, 11, 308.
U.S. Coal Screening, 88.
U.S. Electricity, Production, 208.
U.S. Mechanical Power, 308.
U.S. Mineral Resources, 76.
U.S. Miners, 58.
U.S. Rolling Mill, Last, 405.
U.S. Unmined Coal, 92.
U.S., Falls in Mines, 405.
Unaflow Steam Engine, 312.
Underground Haulage, 320.
Underground Workings, Support of, 27.
Under-managers' Duties, 109.
University, Sheffield, Mining Magazine, 351.
Upcast, Covering Top, 144.
Use and Abuse of Lamps, 389.
Utah, Coal Mining in, 50.
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