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Gas Masks for Gases Met in Fighting Fires

Description: Technical paper issued by the Bureau of Mines over the development of gas masks designed for fighting fires. The characteristics of the different types of masks in development are presented. This paper includes tables, illustrations, and photographs.
Date: August 1921
Creator: Fieldner, Arno Carl; Katz, Sidney H. & Kinney, Selwyne P.
Partner: UNT Libraries Government Documents Department

Utilization of Manganiferous Iron Ores

Description: Technical paper issued by the Bureau of Mines over the use of manganese with iron ore. Different uses of the ore are presented and discussed. This paper includes tables, photographs, and illustrations.
Date: 1926
Creator: Joseph, T. L.; Royster, P. H. & Kinney, Selwyne P.
Partner: UNT Libraries Government Documents Department