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Annual Report of the Explosives Division, Fiscal Year 1942

Description: 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
Item Type: Report

Annual Report of the Mining Division, Fiscal Year 1942

Description: 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.
Item Type: Report

Report of the Nonmetals Division: Fiscal Year 1942

Description: 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
Item Type: Report

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

Description: 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
Item Type: Report

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

Description: 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
Item Type: Report

Stemming in Metal Mines. Progress Report 5: Comparison of Dust and Gases Produced from Blasting Charges of Dynamite in Drill Holes, in Bombs, and in Mud-Cap Shots

Description: Report issued by the U.S. Bureau of Mines on the experiments conducted on stemming in metal-mines. As stated in the introduction, "its purpose is to compare the amount of dust and gases produced as a result of blasting charges of dynamite (1) in drill holes, (2) in bombs, and (3) in mud-cap or adobe shots" (p. 1). Dust and gas concentrations gathered from the experiments are listed. This report includes tables.
Date: December 1942
Creator: Johnson, John A. & Agnew, Wing G.
Item Type: Report

Use of Subaudible Noises for the Prediction of Rock Bursts

Description: 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
Item Type: Report