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Ringelmann Smoke Chart: Revision of I. C. 6888

Description: Report issued by the U.S. Bureau of Mines discussing the Ringelmann Smoke Chart. As stated in the summary, "the Ringelmann Smoke Chart fulfills an important need in smoke abatement work and certain problems in the combustion of fuels. A knowledge of its history and methods of preparation is, therefore, of interest to many" (p. 1). This report tables, and an illustration.
Date: August 1955
Creator: Kudlich, Rudolf H. & Burdick, L. R.

Chrysotile-Asbestos Deposits of Arizona

Description: Report issued by the U.S. Bureau of Mines discussing asbestos mining and production in Arizona. As stated in the summary, "this paper describes most of the chrysotile-asbestos deposits of Arizona. Mining methods are discussed briefly and asbestos-mill flowsheets are incorporated" (p. 1). This report includes tables, maps, illustrations, and photographs.
Date: January 1955
Creator: Stewart, L. A.

Accepted Limit Values of Air Pollutants

Description: Report issued by the U.S. Bureau of Mines discussing, as stated in the introduction, the "accepted maximum permissible concentrations of air pollutants from the standpoints of health, damage to vegetation, damage to property, and requirements of industrial processes" (p. 1). This report includes tables.
Date: May 1954
Creator: Barkley, J. F.

Names and Definitions of Regions, Districts, and Subdistricts in Alaska: Used by the Bureau of Mines in Statistical and Economic Studies Covering the Mineral Industry of the Territory

Description: Report issued by the U.S. Bureau of Mines discussing the development of a naming system for Alaskan regions and districts. The structure of the naming system and a description of each district are presented. This report includes maps.
Date: May 1954
Creator: Ransome, Alfred L. & Kerns, William H.

Ventilating Practices that Minimize Explosion Hazards in Bituminous-Coal Mines

Description: Report issued by the U.S. Bureau of Mines discussing mine ventilation designed to reduce explosion hazards. As stated in the scope and purpose of study, "this circular is intended to present important recommended practices that are necessary to minimize the possibilities of methane accumulations in coal mine and reduce the chances of ignitions from electrical sources" (p. 1). This report includes illustrations.
Date: September 1952
Creator: Ankeny, M. J.; Westfield, James & Kingery, D. S.

Mechanical Mining in Some Bituminous-Coal Mines: Progress Report 6. Extraction of Pillars with Mechanized Equipment

Description: Report issued by the U.S. Bureau of Mines discussing mechanical mining processes in bituminous coal mines. As stated in the introduction, "this is the sixth of a series of publications that describe methods and practices in mining coal mechanically" (p. 1). This report includes tables, and illustrations.
Date: April 1952
Creator: Haley, Wilbur A.; Shields, Joseph J.; Toenges, Albert L. & Turnbull, Louis A.

Carbon Dioxide Content of Mine-Fire Atmospheres as an Aid when Fighting Metal-Mine Fires

Description: Report issued by the U.S. Bureau of Mines discussing mine fires, and methods for controlling and extinguishing them. As stated in the purpose, "the purpose of this report is to show briefly how to utilize the trend of the carbon dioxide content of the mine-fire atmospheres to fight metal-mine fires" (p. 4). This report includes tables, and illustrations.
Date: December 1950
Creator: Ash, S. H.

Energy Uses and Supplies, 1939, 1947, 1965

Description: Report issued by the U.S. Bureau of Mines discussing specific energy uses during the years of 1939, 1947, and 1965. As stated in the subject, "this is a summary of preliminary results of an exploratory study if energy uses and supplies in the United States" (p. 2). This report includes tables, and illustrations.
Date: October 1950
Creator: Barnett, Harold J.

Extinguishing Fire with Carbon Dioxide in the Valier Mine, Valier Coal Company, Valier, Franklin County, Illinois

Description: Report issued by the U.S. Bureau of Mines discussing mining fires, and the use of carbon dioxide as fire control. As stated in the introduction, "the purpose of this circular is to describe the sealing off of a mine fire and subsequent use of carbon dioxide gas to extinguish it" (p. 2). This report includes tables, and illustrations.
Date: April 1950
Creator: Westfield, James; Brumbaugh, H. C. & Whittaker, R. W.

Reconnaissance of Metal Mining in the San Juan Region: Ouray, San Juan, and San Miguel Counties, Colorado

Description: Report issued by the U.S. Bureau of Mines discussing metal mines in Colorado. As stated in the summary, "this paper describes the mineral deposits and discusses mining and milling methods and related operating conditions in an important gold, silver, lead, and zinc producing area in Ouray, San Juan, and San Miguel Counties, Colo., embracing 250 square miles" (p. 5). This report includes tables, maps, and illustrations.
Date: March 1950
Creator: King, William H. & Allsman, Paul T.

Mining Methods and Practices at the Iron King Mine, Shattuck-Denn Mining Corporation, Yavapai County, Arizona

Description: Report issued by the U.S. Bureau of Mines discussing mining methods in Arizona mines. As stated in the introduction, "this paper describes mining operations at the Iron King mine of the Shattuck-Denn Mining Corp. in Yavapai County, Ariz." (p. 2). This report includes tables, maps, illustrations, and photographs.
Date: January 1950
Creator: Kumke, Charles A. & Mille, H. F.