The Canadian Gypsum Industry (open access)

The Canadian Gypsum Industry

From introduction: The production of gypsum is one of the oldest industries in Canada, and in point of gypsum output Canada ranks third among the countries of the world. Gypsum was discovered in the Maritime Provinces at a very early date, but there is no authentic record..of production until about 1822, when gypsum was mined on a small scale in Ontario. Since.then the production has grown slowly but steadily to more than a million tons. In 1928 the output was 1,205,846 short tons, valued at $3,622,007.
Date: August 1929
Creator: Santmyers, R. M.
System: The UNT Digital Library
Ringelmann Smoke Chart (Revision of I.C. 6888) (open access)

Ringelmann Smoke Chart (Revision of I.C. 6888)

Revised report discussing the Ringelmann Smoke Chart, describing the history and background of the chart, its use, and how to read it.
Date: August 1955
Creator: Burdick, L. R. & Kudlich, Rudolph
System: The UNT Digital Library
Quartz and Silica: Part 1. - General Summary (open access)

Quartz and Silica: Part 1. - General Summary

Report issued by the U.S. Bureau of Mines discussing quartz and silica minerals. As stated in the foreword, "the purpose of the present paper is to assemble brief summaries of the many widely differing industries engaged in the production and preparation of these minerals in their principal commercial forms" (p. 1). This report includes tables, and illustrations.
Date: August 1931
Creator: Santmyers, Reigart Meredith
System: The UNT Digital Library
Petroleum Refineries, Including Cracking Plants in the United States, January 1, 1948 (open access)

Petroleum Refineries, Including Cracking Plants in the United States, January 1, 1948

Report issued by the U.S. Bureau of Mines discussing the petroleum refineries and cracking plants throughout the United States. As stated in the introduction, "in this publication the capacities of petroleum refineries and cracking plants in the United States on January 1, 1948, are listed, according to the latest annual survey of the Bureau of Mines" (p. 1). This report includes tables, and a map.
Date: August 1948
Creator: Lott, F. S.
System: The UNT Digital Library
Vapor-Pressure Chart for Volatile Hydrocarbons (open access)

Vapor-Pressure Chart for Volatile Hydrocarbons

Report issued by the U.S. Bureau of Mines discussing the construction of a vapor-pressure chart. A description of the vapor-pressure chart is presented. This report includes illustrations.
Date: August 1942
Creator: Smith, R. Vincent
System: The UNT Digital Library
Marketing Mineral Pigments (open access)

Marketing Mineral Pigments

Report issued by the U.S. Bureau of Mines discussing the use of mineral pigments. The importance of pigments is presented along with a description of import and export trends of minerals. This report includes tables.
Date: August 1942
Creator: Harness, Charles L.
System: The UNT Digital Library
A Reconnaissance of Lode Mines and Prospects in the Bohemia Mining District, Lane and Douglas Counties, Oregon (open access)

A Reconnaissance of Lode Mines and Prospects in the Bohemia Mining District, Lane and Douglas Counties, Oregon

Report issued by the U.S. Bureau of Mines discussing the lode mines in the Bohemia Mining District of Oregon. The geological properties and mining activities are presented. This report includes tables, maps, and illustrations.
Date: August 1949
Creator: Taber, John W.
System: The UNT Digital Library
Economic Considerations in the Recovery of Magnesia from Dolomite (open access)

Economic Considerations in the Recovery of Magnesia from Dolomite

Report issued by the U.S. Bureau of Mines discussing the recovery of magnesia from dolomite. Processes and methods of recovery are described. This report includes tables.
Date: August 1943
Creator: Schallis, Alvin
System: The UNT Digital Library
Thickness of Bituminous Coal and Lignite Seams Mined in 1965 (open access)

Thickness of Bituminous Coal and Lignite Seams Mined in 1965

Report issued by the Bureau of Mines discussing the thickness of coal seams mined in the United States between 1945 and 1965. Locations, and production of coal seams are presented. This report includes tables.
Date: August 1967
Creator: Young, W. H.
System: The UNT Digital Library