Stemming in Metal Mines. Progress Report 3: Relative Advantages and Disadvantages of Different Types of Stemming and No Stemming When Used with 60 Percent Ammonia Gelatin Dynamite at the Mount Weather Testing Adit (open access)

Stemming in Metal Mines. Progress Report 3: Relative Advantages and Disadvantages of Different Types of Stemming and No Stemming When Used with 60 Percent Ammonia Gelatin Dynamite at the Mount Weather Testing Adit

Report issued by the U.S. Bureau of Mines on the progress made in metal-mine stemming. Previous reports have been presented impartially, or under different procedures. This report contains updated progress results from current procedures and mine conditions. The report includes tables, and illustrations.
Date: February 1942
Creator: Johnson, John A.; Agnew, Wing G. & Mosier, McHenry
System: The UNT Digital Library
Review of the Heaving-Shale Problem in the Gulf Coast Region (open access)

Review of the Heaving-Shale Problem in the Gulf Coast Region

Report issued by the U.S. Bureau of Mines over the ongoing issue of heaving-shale in the Gulf Coast area. The operations and potential causes of incompetent heaving-shale are listed. This report includes tables, and a map.
Date: March 1942
Creator: Wade, Gustav
System: The UNT Digital Library
Variations in Oxygen Condition Between Individual Cartridges and Between Cases of Permissible Explosives (open access)

Variations in Oxygen Condition Between Individual Cartridges and Between Cases of Permissible Explosives

Report issued by the U.S. Bureau of Mines on the differing conditions of oxygen in explosives. Results from explosives samples with oxygen variations are presented. This report includes tables.
Date: June 1942
Creator: Rowles, A. P. & Denues, A. R. T.
System: The UNT Digital Library
Manganese Investigations - Metallurgical Division: 8. Pyrometallurgical Studies of Manganese Ore (open access)

Manganese Investigations - Metallurgical Division: 8. Pyrometallurgical Studies of Manganese Ore

Report issued by the U.S. Bureau of Mines on investigations conducted on manganese ore used for smelting. Experimental methods and results are presented. This report includes tables, and a photograph.
Date: March 1942
Creator: Miller, Virgil; Petermann, F. B.; Pike, J. A. & Peterson, R. G.
System: The UNT Digital Library
Manganese Investigations - Metallurgical Division: 14. Hydrometallurgical Studies of Manganses Ores (open access)

Manganese Investigations - Metallurgical Division: 14. Hydrometallurgical Studies of Manganses Ores

Report issued by the U.S. Bureau of Mines regarding laboratory tests conducted on acid leaching of manganese ore. Descriptions of the methods used in testing and results are presented. This report contains tables, and graphs.
Date: July 1942
Creator: Anderson, Clarence Travis
System: The UNT Digital Library
Use of Subaudible Noises for the Prediction of Rock Bursts (open access)

Use of Subaudible Noises for the Prediction of Rock Bursts

Report issued by the U.S. Bureau of Mines on testing of sub-audible noises and accuracy of rock burst predictions. The history of this study, and the results of these investigations are presented. This report includes tables, graphs, illustrations, and diagrams.
Date: July 1942
Creator: Obert, Leonard & Duvall, Wilbur
System: The UNT Digital Library
Size Consist, Chemical Analysis, and Physical Properties of 2-1/2-Inch Subbituminous Slack from the Denver, Colorado Region (open access)

Size Consist, Chemical Analysis, and Physical Properties of 2-1/2-Inch Subbituminous Slack from the Denver, Colorado Region

Report issued by the U.S. Bureau of Mines on sub-bituminous slack from Denver, Colorado. The characteristics and properties of 2-1/2 inch slack samples are listed. This report includes tables, graphs, maps, illustrations, and photographs.
Date: August 1942
Creator: Parry, V. F. & Landers, W. S.
System: The UNT Digital Library
Annual Report of the Mining Division, Fiscal Year 1942 (open access)

Annual Report of the Mining Division, Fiscal Year 1942

Report issued by the U.S. Bureau of Mines on the annual work conducted by the Mining Division during 1942. Descriptions of projects and operations during the fiscal year are listed. This report contains tables, and photographs.
Date: October 1942
Creator: Jackson, Charles F.
System: The UNT Digital Library
Annual Report of the Explosives Division, Fiscal Year 1942 (open access)

Annual Report of the Explosives Division, Fiscal Year 1942

Report issued by the U.S. Bureau of Mines on the annual report of work conducted by the Explosives Division during the fiscal year of 1942. Descriptions of testing projects and operations are presented. This report includes tables, graphs, illustrations, and photographs.
Date: December 1942
Creator: Huff, Wilbert James
System: The UNT Digital Library
Report of the Nonmetals Division: Fiscal Year 1942 (open access)

Report of the Nonmetals Division: Fiscal Year 1942

Report issued by the Bureau of Mines over the operations of the Nonmetals Division during 1942. The work done by the division is discussed. This report includes tables, illustrations, and photographs.
Date: November 1942
Creator: Ralston, Oliver C. & Stern, A. George
System: The UNT Digital Library
Quarry Accidents in the United States During the Calendar Year 1940 (open access)

Quarry Accidents in the United States During the Calendar Year 1940

Report published by the U.S. Bureau of Mines which is a compilation of accidents in quarries located in the United States with data regarding the number and kinds of accidents as well as information about the mining operations (e.g., number of men employed, kinds of quarries, amount of work performed, etc.).
Date: 1942
Creator: Adams, William W. & Wrenn, Virginia E.
System: The UNT Digital Library
Coal-Mine Accidents in the United States, 1940 (open access)

Coal-Mine Accidents in the United States, 1940

Report compiled by the U.S. Bureau of Mines including statistics on fatal and non-fatal accidents in coal mines located in the United States as well as data regarding the various operations (e.g., number of miners employed and average production). The information is organized into tables for comparison and the text draws some overall conclusions in the summary.
Date: 1942
Creator: Adams, William W.; Geyer, L. E. & Parry, M. G.
System: The UNT Digital Library
Metal- and Nonmetal-Mine Accidents in the United States During the Calendar Year 1940 (Excluding Coal Mines) (open access)

Metal- and Nonmetal-Mine Accidents in the United States During the Calendar Year 1940 (Excluding Coal Mines)

Report published by the U.S. Bureau of Mines regarding accidents at mines located in the United States for all operations except coal mines. The report includes statistics about the number and kinds of accidents as well as information about the mining operations (i.e., number of persons employed, average amount of work performed per person, etc.).
Date: 1942
Creator: Adams, W. W. & Kolhos, M. E.
System: The UNT Digital Library
Coal-Mine Accidents in the United States, 1939 (open access)

Coal-Mine Accidents in the United States, 1939

Report compiled by the U.S. Bureau of Mines including statistics on fatal and non-fatal accidents in coal mines located in the United States as well as data regarding the various operations (e.g., number of miners employed and average production). The information is organized into tables for comparison and the text draws some overall conclusions in the summary.
Date: 1942
Creator: Adams, William W.; Geyer, L. E. & Parry, M. G.
System: The UNT Digital Library
Typical Analyses of Coals of the United States (open access)

Typical Analyses of Coals of the United States

From Introduction: "This paper presents a summary, in tabular form, of the composition of commercial coal resources of the country."
Date: 1942
Creator: Fieldner, A. C.; Rice, W. E. & Moran, H. E.
System: The UNT Digital Library
Some Haulage and Hoisting Hazards in Western Mines (open access)

Some Haulage and Hoisting Hazards in Western Mines

Report issued by the U.S. Bureau of Mines discussing safety hazards in western mines. Mine hoisting and haulage accidents are presented. Accident prevention is also discussed. This report includes tables.
Date: December 1942
Creator: Denny, E. H. & Humphrey, H. B.
System: The UNT Digital Library
Analyses of West Virginia Coals (open access)

Analyses of West Virginia Coals

Technical paper issued by the Bureau of Mines over studies of West Virginia coal fields. Characteristics of coals and mines are discussed. This paper includes tables, maps, and illustrations.
Date: 1942
Creator: Price, Paul H.; Heck, E. T.; Fieldner, Arno Carl; Toenges, Albert L.; Anderson, R. L.; Snyder, N. H. et al.
System: The UNT Digital Library