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1441“...Report of investigations (United States. Bureau of Mines) ;...”
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1442“...Report of investigations (United States. Bureau of Mines) ;...”
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1443by Johnson, John A. (John Albert), 1896-“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1943
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1444by Parry, V. F. (Vernon Frank), 1899-“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1943
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1445Published 1943“...Report of investigations (United States. Bureau of Mines) ;...”
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1446by Holtz, John C., Berger, L. B. (Lawrence Bursley), 1898-1968, Elliott, M. A. (Mark Andrew), Schrenk, H. H. (Helmuth Herman), 1902-“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1943
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1447“...Report of investigations (United States. Bureau of Mines) ;...”
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1448by Schmidt, L. D. (Lawrence Delos), 1901-, Schroeder, W. C. (Wilburn Carroll), 1906-, Fieldner, Arno Carl, 1881-1966“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1943
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1449“...Report of investigations (United States. Bureau of Mines) ;...”
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1450“...Report of investigations (United States. Bureau of Mines) ;...”
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1451by Yancey, H. F. (Harry Fagan), 1890-1970, Daniels, Joe, McMillan, E. R., Geer, M. R. (Max Richard), 1912-1981“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1943
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1452“...Report of investigations (United States. Bureau of Mines) ;...”
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1453“...Report of investigations (United States. Bureau of Mines) ;...”
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1454by Selvig, W. A. (Walter Alfred), 1886-1972, Ode, W. H. (William Harlan), 1905-, Gibson, F. H. (Francis Harold), 1903-, Davis, J. D. (Joseph Dana), 1882-1956“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1943
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1455“...Report of investigations (United States. Bureau of Mines) ;...”
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1456by Huff, Wilbert J.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1944
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1457by Ode, W. H. (William Harlan), 1905-“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1944
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1458“...Report of investigations (United States. Bureau of Mines) ;...”
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1459by Holt, Stephen P.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1946
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1460“...Report of investigations (United States. Bureau of Mines) ;...”
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