Rock Quarrying for Cement Manufacture (open access)

Rock Quarrying for Cement Manufacture

Report issued by the Bureau of Mines over rock quarries in the United States. As stated in the introduction, "the bulk of the report deals with quarrying methods and equipment, and gives special attention to drilling and blasting; a chapter on rock mining and one on prospecting are included" (p. 1). This report includes tables, illustrations, and photographs.
Date: June 1918
Creator: Bowles, Oliver
System: The UNT Digital Library
Coal-Dust Explosion Tests in the Experimental Mine 1913-1918, Inclusive (open access)

Coal-Dust Explosion Tests in the Experimental Mine 1913-1918, Inclusive

Report issued by the Bureau of Mines over experiments conducted on coal-dust explosions. The results of the experiments are presented and discussed. This report includes tables, illustrations, and photographs.
Date: June 1922
Creator: Rice, George S.; Jones, Lewis M.; Egy, Willard Leo & Greenwald, H. P.
System: The UNT Digital Library
Petroleum Investigations and Production of Helium (open access)

Petroleum Investigations and Production of Helium

Report issued by the Bureau of Mines over studies conducted on petroleum and helium production. The results of the studies are presented and discussed.
Date: June 1919
Creator: Manning, Van. H.
System: The UNT Digital Library
Timbering of Metal Mines (open access)

Timbering of Metal Mines

Report issued by the Bureau of Mines over the importance of timbering in metal mines. The reasons and methods for timbering are presented and discussed. This report includes illustrations, and photographs.
Date: June 1923
Creator: Holbrook, Elmer Allen; Ageton, Richard V. & Tufft, Harry E.
System: The UNT Digital Library