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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
Method and Cost of Mining the Thick Freeport Coal in a Second Western Pennsylvania Mine
From introduction: The purpose of this paper is to present a detailed description of the methods employed and the equipment used, with the results obtained in the operation of this mine in the thick Freeport bed on the northern end of the field, near the Alleghegny-Butler county line in western Pennsylvania. It may be classed as a captive mine, as the largest portion of the product is consumed at the by-product plants of the parent company
Date:
July 1929
Creator:
Paul, James Washington & Tomlinson, H.
System:
The UNT Digital Library
Ocher and Ochery Earths
Report about ocher or ochery earth, "a natural mineral pigment composed largely of clay permeated with hydrated iron (ferric oxide)" (p. 2). It includes information about the uses of choer, substitutes, artificial ocher, mining and local deposits, import and export of ocher, and related information.
Date:
May 1929
Creator:
Santmyers, R. M.
System:
The UNT Digital Library
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
Survey of Gravities of Domestic Crudes
Report on the comparative gravities of oil extracted from different regions of the United States.
Date:
April 1929
Creator:
Hopkins, G. R. & Coons, A. B.
System:
The UNT Digital Library
Bauxite: Float-and-Sink Fractionations and Flotation Experiments
From Introduction: "This report presents the results of an investigation of the physical properties and characteristics of bauxite, with special reference to the possibility of applying commercial methods of concentration to low-grade bauxite."
Date:
1929
Creator:
Gandrud, B. W. & De Vaney, Fred D.
System:
The UNT Digital Library
Bibliography of Petroleum and Allied Substances, 1922 and 1923
From Introduction: "This bulletin is the seventh in this series of petroleum bibliographies published by the Bureau of Mines, Bulletins 149, 165, 180, 189, 216, and 220 being complications for the years 1915, 1916, 1917, 1918, 1919-20, and 1921, respectively. In this bulletin the same general plan of classification of references has been followed, but several additions have been made."
Date:
1929
Creator:
Britton, H.
System:
The UNT Digital Library
Carburetion of Combustible Gas with Butane and Propane-Butane Mixtures with Particular Reference to the Carburetion of Water Gas
Report issued by the Bureau of Mines over the carburetion of many different fuels. The report pays particular attention to the carburetion of water gas. Carburetion methods and results are presented and discussed. This report includes tables, and illustrations.
Date:
1929
Creator:
Odell, William Wallace
System:
The UNT Digital Library
Coal-Mine Ventilation Factors
Report discussing results from investigations of coal mining ventilation and discussing problems of ventilation in coal mining.
Date:
1929
Creator:
Greenwald, H. P. & McElroy, G. E.
System:
The UNT Digital Library
Coal-Washing Investigations: Methods and Tests
From Introduction: "The investigations described in this bulletin are confined to a study of the washing characteristics of bituminous coals. The washing characteristics of coals from many of the most important coal-producing fields of the Eastern and Central States were examined."
Date:
1929
Creator:
Yancey, H. F. & Fraser, Thomas
System:
The UNT Digital Library
Drilling and Blasting in Metal-Mine Drifts and Crosscuts
From Introduction: "This report shows the results obtained and conclusions drawn from observing the blasting of 108 rounds at 13 mines in six different States. Kinds of rock drills, drill steel, and forms of drill bits are not considered."
Date:
1929
Creator:
Gardner, E. D.
System:
The UNT Digital Library
Factors Governing the Entry of Solutions into Ores During Leaching
Technical paper issued by the Bureau of Mines over studies on the leaching of copper-bearing ores. As stated in the introduction, the "penetration of the leaching medium into the body of the ore particles" (p. 1) is discussed. This paper includes tables, photographs, and illustrations.
Date:
1929
Creator:
Sullivan, John D.; Keck, Walter E. & Oldright, George L.
System:
The UNT Digital Library
Facts Relating to the Production and Substitution of Manufactured Gas for Natural Gas
Report issued by the Bureau of Mines over information obtained on manufactured gas production instead of natural gas production. The information collected is discussed. This includes such topics as rates, methods, and locations of gas. This report includes tables, maps, illustrations, and photographs.
Date:
1929
Creator:
Odell, William Wallace
System:
The UNT Digital Library
Flow of Gases Through Beds of Broken Solids
Report issued by the Bureau of Mines over studies conducted on the effects of vapor flow through beds of broken solids. Methods and results of the studies are presented and discussed. This report includes tables, illustrations, and photographs.
Date:
1929
Creator:
Furnas, C. C.
System:
The UNT Digital Library
Fuel-Efficiency Tests on Batch Oil Stills
From Introduction Need for Tests: "This bulletin presents in condensed form the results of these tests and the deductions made from them. The tests were made at two refineries, designated here at plant 1 and plant 2."
Date:
1929
Creator:
Kreisinger, Henry; Argyle, W. R. & Rice, W. E.
System:
The UNT Digital Library
Graphical Terrane Correction for Gravity Gradient
Technical paper issued by the Bureau of Mines over formula corrections to make up for gravity gradients. The new formulas are presented and discussed in detail. This paper includes tables, and illustrations.
Date:
1929
Creator:
Barton, Donald C.
System:
The UNT Digital Library
Inspection and Testing of Mine-Type Electrical Equipment for Permissibility
From Introduction: "This publication, therefore, proposes to discuss the theory upon which tests of equipment in explosive atmospheres are based and to consider inspection and other matters pertaining to complete investigations of machines under Schedules 2B and 15."
Date:
1929
Creator:
United States. Bureau of Mines.
System:
The UNT Digital Library
Iron Oxide Reduction Equilibria: A Critique from the Standpoint of the Phase Rule and Thermodynamics
Report issued by the Bureau of Mines over studies conducted on iron oxide reduction. As stated in the scope of bulletin, "this bulletin, therefore, presents the properties of the common oxides of iron, their combinations with each other, and the reduction-equilibrium diagrams by which the investigator passes from one to the next; the end point is not pure iron but the carburized iron of the blast furnace, cast iron" (p. 1-2). This report includes tables, and illustrations.
Date:
1929
Creator:
Ralston, Oliver C.
System:
The UNT Digital Library
Metal-Mine Accidents in the United States During the Calendar Year 1927
Report issued by the U.S. Bureau of Mines covering accidents that happened in metal mines located in the United States including statistics for injuries, fatalities, kinds and causes of accidents, and operational data, such as number of mine workers and shifts worked.
Date:
1929
Creator:
Adams, William W.
System:
The UNT Digital Library
Metallurgical Limestone: Problems in Production and Utilization
From Introduction: "The purpose of this report is to cover as completely as possible our present knowledge of the utilization of metallurgical stone and the problems connected with its quarrying or mining and preparation."
Date:
1929
Creator:
United States. Bureau of Mines.
System:
The UNT Digital Library
Methods, Costs, and Safety in Stripping and Mining Coal, Copper Ore, Iron Ore, Bauxite, and Pebble Phosphate
From Extent of Open-Pit Mining and Purpose of this Publication: "Various methods and machines are employed, and costs are low; in fact, costs have to be low because coal and ores command a low price on the market. These factors, together with queries on methods and costs of stripping and the increase in open-pit mining, have justified investigation by the Bureau of Mines for this form of mining and publication of the results in this report."
Date:
1929
Creator:
United States. Bureau of Mines.
System:
The UNT Digital Library
Mining Methods and Practice in the Michigan Copper Mines
From Introduction: "The mining methods described and discussed in this report have been considered historically-that is, from early to present practice. The data for this report were collected during 1927."
Date:
1929
Creator:
Crane, W. R.
System:
The UNT Digital Library
Ochers and Mineral Pigments of the Pacific Northwest : Occurrence, Possible Methods of Preparation, and Testing of Ochers, Siennas, and Colored Clays
From Introduction: "A review is given of the nomenclature, sources, imports, statistics, common methods of preparation, and testing of mineral pigments. A description of the Deer Park-Spokane colored-clay district and the laboratory methods of preparation of these colored clays, ochers, and siennas follows. The following report is merely preliminary in nature, only three months during the summer of 1927 being devoted to the laboratory investigation."
Date:
1929
Creator:
Wilson, Hewitt
System:
The UNT Digital Library
Oxides in Pig Iron: Their Origin and Action in the Steel-Making Process
From Introduction: "In summarizing the evidence in the literature it is apparent that there is general agreement among furnace men on the existence of so-called "bad-iron." It is also evident that the existence of dissolved or occluded gases is not an explanation. The presence of suspended oxides has been proved, and at least one plausible explanation for their formation has been given."
Date:
1929
Creator:
Herty, C. H., Jr. & Gaines, J. M., Jr.
System:
The UNT Digital Library