Change Houses in the Lake Superior Region (open access)

Change Houses in the Lake Superior Region

Technical paper issued by the Bureau of Mines over change and wash houses in the Lake Superior area. As stated in the introduction, "this paper, with a few exceptions, presents data acquired in a survey, made by the author, of change houses in the Lake Superior region. All buildings, equipment, and practices were studied with regard for the health and welfare of the miner" (p. 1). This paper includes tables, photographs, and illustrations.
Date: September 1923
Creator: Kindall, Cleve Edwin
System: The UNT Digital Library
Experiments in Underground Communication Through Earth Strata (open access)

Experiments in Underground Communication Through Earth Strata

Technical paper issued by the Bureau of Mines over studies in mine safety and communication. The methods and equipment used in the studies are presented and discussed. This paper includes tables, illustrations, and photographs.
Date: 1928
Creator: Ilsley, L. C.; Freeman, H. B. & Zellers, D. H.
System: The UNT Digital Library
Gas Masks for Gases Met in Fighting Fires (open access)

Gas Masks for Gases Met in Fighting Fires

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.
System: The UNT Digital Library