Review of State Mine Inspector's Reports as They Relate to Accidents from Falls of Roof (open access)

Review of State Mine Inspector's Reports as They Relate to Accidents from Falls of Roof

Report issued by the U.S. Bureau of Mines over state mine inspection reports from 19 U.S. states. The information in the reports includes details of accidents, locations that specific accidents occurred, and proposed remedies for prevention of future accidents. This report includes tables.
Date: April 1929
Creator: Paul, James Washington
System: The UNT Digital Library
Investigations of the Preparation and Use of Lignite, 1918-1925 (open access)

Investigations of the Preparation and Use of Lignite, 1918-1925

Report issued by the Bureau of Mines over investigations conducted on lignite. Preparation methods and uses of lignite are discussed. This report includes tables, maps, illustrations, and photographs.
Date: 1926
Creator: Hood, O. P. & Odell, William Wallace
System: The UNT Digital Library
Investigations of the Preparation and Use of Lignite, 1918-1925 (open access)

Investigations of the Preparation and Use of Lignite, 1918-1925

Report issued by the Bureau of Mines over investigations conducted on lignite. Preparation methods and uses of lignite are discussed. This report includes tables, maps, illustrations, and photographs.
Date: 1926
Creator: Hood, O. P. & Odell, William Wallace
System: The UNT Digital Library
Production and Briquetting of Carbonized Lignite (open access)

Production and Briquetting of Carbonized Lignite

From Introduction: "The Bureau of Mines since its establishment has always taken an active interest in the utilization of lignite and in the development of the lignite deposits of the United States. Extensive lignite fields occur in the west central States, notably in North Dakota, Montana, Wyoming, Colorado, and Texas; there are smaller areas in several other Sates, some of which are widely separated."
Date: 1923
Creator: Babcock, E. J. & Odell, W. W.
System: The UNT Digital Library