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The Gabbros and Associated Hornblende Rocks Occurring in the Neighborhood of Baltimore, Maryland (open access)

The Gabbros and Associated Hornblende Rocks Occurring in the Neighborhood of Baltimore, Maryland

From introduction: The present paper is intended as a contribution to our knowledge of a particular phase of metamorphism in eruptive rocks, i.e., that one which is dependent on the secondary development of hornblende by the paramorphism or pseudomorphism of pyroxene.
Date: 1886
Creator: Williams, George Huntington
System: The UNT Digital Library
Chevy Chase, MD., To Connect its Water System with that of District of Columbia, Report (open access)

Chevy Chase, MD., To Connect its Water System with that of District of Columbia, Report

Report of the Committee on the District of Columbia detailing the opinions and recommendations of the Committee on the proposed Senate bill 4107 to authorize the town of Chevy Chase, Maryland to connect its water system with the water system of the District of Columbia.
Date: 1908~
Creator: United States. Congress. Senate. Committee on the District of Columbia
System: The UNT Digital Library
City Smoke Ordinances and Smoke Abatement (open access)

City Smoke Ordinances and Smoke Abatement

From Introduction: "In connection with the fuel investigations conducted by the Bureau of Mines much information has been accumulated as to the smoke abatement activities in various cities. The essential features of the information are presented in this report, which, it is believed, will be of public interest and benefit, especially to those communities that are just beginning organized effort to abate unnecessary smoke."
Date: 1912
Creator: Flagg, Samuel B.
System: The UNT Digital Library
Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910: Part 1. -- Analyses (open access)

Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910: Part 1. -- Analyses

From Significance and value of Analyses of Coal: "The analyses published in this report cover samples of coal collected in many different parts of the country with unusual care by experiences men, in such manner as to make them representative of extensive beds of coal."
Date: 1913
Creator: Lord, N. W.
System: The UNT Digital Library
Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910 Part 2. Descriptions of Samples (open access)

Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910 Part 2. Descriptions of Samples

From Introduction: "This volume contains the descriptions of the samples whose analyses are published in the preceding volume, Part I of this bulletin. The descriptions have been compiled from the notebooks of the persons who collected the samples, have been condensed from accounts given in published reports of the United States Geological Survey, or have furnished by the collection themselves. Inasmuch as the descriptions represent the work of many persons during a period of six years, and inasmuch as they were recorded under widely differing conditions, they necessarily vary in fullness detail."
Date: 1913
Creator: Lord, N. W.
System: The UNT Digital Library
Coal-Mine Accidents in the United States and Foreign Countries (open access)

Coal-Mine Accidents in the United States and Foreign Countries

From Introduction: "The lack of comparable and accurate statistics of coal-mine accidents in the united States as a whole led the Bureau of Mines in 1911 to undertake the collection of such data. The mining departments of the leading foreign coal-producing countries have long taken cognizance of the importance of statistics. The bureau feels that in presenting the tables embodied in this report it is offering the and comparable statistics of coal-min accidents for the country as a whole that have ever been published."
Date: 1913
Creator: Horton, Frederick W.
System: The UNT Digital Library
The Feldspars of the New England and North Appalachian States (open access)

The Feldspars of the New England and North Appalachian States

From Introduction: "The investigations presented in this bulletin have been undertaken by the bureau with a view to a better understanding of the conditions which confront the producer of commercial feldspar and also with the object of determining wherein the various deposits of feldspar differ."
Date: 1916
Creator: Watts, A. S.
System: The UNT Digital Library
Analyses of Mine and Car Samples of Coal Collected in the Fiscal Years 1916 to 1919 (open access)

Analyses of Mine and Car Samples of Coal Collected in the Fiscal Years 1916 to 1919

From Introduction: "The present bulletin presents analyses and descriptions of samples collected during the fiscal years 1916 to 1919. In order that the material in this bulletin may be used to supplement that presented in Bulletins 22, 85, and 123, the same plan of geographical classification has been followed, the analyses and descriptions of the samples being grouped in alphabetical order according to the State, country, and town near which the mines or prospects sampled are situated."
Date: 1922
Creator: Fieldner, Arno C.; Selvig, Walter A. & Paul, J. W.
System: The UNT Digital Library
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
Annual Report of Research and Technologic Work on Coal: Fiscal Year 1941 (open access)

Annual Report of Research and Technologic Work on Coal: Fiscal Year 1941

Report issued by the U.S. Bureau of Mines discussing the annual report over the research and technology of coal during 1941. As stated in the foreword, "these investigations increase our fund of exact knowledge on the properties and composition of American coals and lead to better methods in mining, preparing, storing, and utilizing coal" (p. 4). This report includes tables, illustrations, photographs, and a map.
Date: November 1941
Creator: Fieldner, Arno Carl & Schmidt, L. D.
System: The UNT Digital Library
Report of the Nonmetals Division: Fiscal Year 1942 (open access)

Report of the Nonmetals Division: Fiscal Year 1942

Report issued by the Bureau of Mines over the operations of the Nonmetals Division during 1942. The work done by the division is discussed. This report includes tables, illustrations, and photographs.
Date: November 1942
Creator: Ralston, Oliver C. & Stern, A. George
System: The UNT Digital Library
Potash Salts from Texas-New Mexico Polyhalite Deposits: Commercial Possibilities, Proposed Technology, and Pertinent Salt-Solution Equilibria (open access)

Potash Salts from Texas-New Mexico Polyhalite Deposits: Commercial Possibilities, Proposed Technology, and Pertinent Salt-Solution Equilibria

From Introduction: "Figure 1 shows the location of sources that have been either exploited or seriously considered at one time or another, super-imposed upon a map indicating by small letters the order of consumption of K2O in the leading States; the amount used in these States, together with the percentage of the total consumption of potash used as fertilizer in the United States in 1939, is given in table 1. Figure 2 shows the domestic production and total consumption of potassium salts, in terms of tons of K2O, with the value per unit at the plants, for each year since 1913. Considered together, these two figures tell a significant story."
Date: 1944
Creator: Conley, John E. & Partridge, Everett P.
System: The UNT Digital Library
Aerodynamic Measurements Made During Navy Investigation of Human Tolerance to Wind Blasts (open access)

Aerodynamic Measurements Made During Navy Investigation of Human Tolerance to Wind Blasts

From Summary: "This report presents the aerodynamic measurements made during a Navy investigation conducted in the Langley 8-foot high speed tunnel to determine the actual human tolerance to wind blasts."
Date: March 11, 1947
Creator: Loving, Donald L.
System: The UNT Digital Library
Comparative Study of Magnetic Surveys of Worcester County, Maryland: Made on the Ground and From Airplane Observations (open access)

Comparative Study of Magnetic Surveys of Worcester County, Maryland: Made on the Ground and From Airplane Observations

Report issued by the U.S. Bureau of Mines on magnetic surveys conducted on Worcester County, Maryland. The results of observations obtained on the ground and from the air are presented. This report includes tables, graphs, and maps.
Date: May 1947
Creator: Kuehn, Hugo E. & Dent, Guy E.
System: The UNT Digital Library
Investigation of Lower Coal Beds in Georges Creek and North Part of Upper Potomac Basins, Allegany and Garrett Counties, Maryland: Reserves, Petrographic and Chemical Characteristics of Coals, and Stratigraphy of Area (open access)

Investigation of Lower Coal Beds in Georges Creek and North Part of Upper Potomac Basins, Allegany and Garrett Counties, Maryland: Reserves, Petrographic and Chemical Characteristics of Coals, and Stratigraphy of Area

Report presenting the results of an investigation into various charactaristics that could increase the output lower, thinner coal beds, to replace the upper coal beds which are nearing exhaustion.
Date: 1949
Creator: Toenges, Albert L.; Turnbull, Louis A.; Williams, Lloyd & Smith, H. L.
System: The UNT Digital Library
The Synthetic Liquid Fuel Potential of Maryland (open access)

The Synthetic Liquid Fuel Potential of Maryland

Report documenting the suitability of Maryland for plant locations to produce synthetic liquid fuels, based on raw materials, water sources, and local interest.
Date: May 7, 1951
Creator: Ford, Bacon, and Davis
System: The UNT Digital Library
Castleman Basin, Garrett County, Maryland (open access)

Castleman Basin, Garrett County, Maryland

Report published by the U.S. Bureau of Mines containing the results of a survey to determine the status of the coal beds in Maryland. The report discusses the characteristics of the coal in the area as well as mining practices and geologic overview.
Date: 1952
Creator: Toenges, Albert L.; Williams, Lloyd; Turnbull, Louis A.; Parks, B. C.; O'Donnell, H. J.; Abernethy, Roy F. et al.
System: The UNT Digital Library
STUDIES OF FAST NEUTRONS AND FAST NEUTRON REACTIONS (open access)

STUDIES OF FAST NEUTRONS AND FAST NEUTRON REACTIONS

None
Date: October 1, 1952
Creator: unknown
System: The UNT Digital Library
Behavior of Institutional Incinerators When Used to Burn Radioactive Wastes: Final Project Report for August 1, 1950-November 1, 1952 (open access)

Behavior of Institutional Incinerators When Used to Burn Radioactive Wastes: Final Project Report for August 1, 1950-November 1, 1952

This report deals with the development of methods and techniques for measuring the amounts of radioisotope on the stack wall, in ash, stack gas and atmosphere during and after incineration in the conventional refuse-type destructor.
Date: November 1, 1952
Creator: Kruse, C. W.; Freese, P. V.; Machis, A. & Behn, V. C.
System: The UNT Digital Library
Analyses of Tipple and Delivered Samples of Coal: (Collected During the Fiscal Years 1948 to 1950 Inclusive) (open access)

Analyses of Tipple and Delivered Samples of Coal: (Collected During the Fiscal Years 1948 to 1950 Inclusive)

From Forward: "This bulletin is the first of a new series, which includes analyses of only tipple and delivered coal. It covers samples collected throughout the United States from July 1, 1947 to June 30, 1950 (fiscal years 1948-50). It is planned that future publications of this series will cover a period of one fiscal year only and be issued as soon as possible after June 30 of each year."
Date: 1953
Creator: Snyder, N. H. & Aresco, S. J.
System: The UNT Digital Library
Estimate of Known Recoverable Reserves of Coking Coal in Allegany County, Maryland (open access)

Estimate of Known Recoverable Reserves of Coking Coal in Allegany County, Maryland

Report issued by the U.S. Bureau of Mines investigating the estimated reserves of coking coal in Allegany County, Maryland. The investigation also studied properties of coals and coal blends not widely used for metallurgical coke making. This report includes maps and tables.
Date: May 1953
Creator: Wallace, Joseph J.; Dowd, James J.; Williams, Lloyd; Abernethy, R. F. & Reynolds, D. A.
System: The UNT Digital Library
Estimate of Known Recoverable Reserves of Coking Coal in Allegany County, Maryland (open access)

Estimate of Known Recoverable Reserves of Coking Coal in Allegany County, Maryland

Report issued by the U.S. Bureau of Mines investigating the estimated reserves of coking coal in Allegany County, Maryland. The investigation also studied properties of coals and coal blends not widely used for metallurgical coke making. This report includes maps and tables.
Date: May 1953
Creator: Wallace, Joseph J.; Dowd, James J.; Williams, Lloyd; Abernethy, R. F. & Reynolds, D. A.
System: The UNT Digital Library
An analytical study of the effect of airplane wake on the lateral dispersion of aerial sprays (open access)

An analytical study of the effect of airplane wake on the lateral dispersion of aerial sprays

From the Introduction: "In the present reports the paths of liquid spray droplets issued in the flow field behind an airplane are calculated."
Date: 1954
Creator: Reed, Wilmer H., III
System: The UNT Digital Library
Flood Prevention in Anthracite Mines, Northern Field: Anthracite Region of Pennsylvania, Project Number 1 (Lackawanna) (open access)

Flood Prevention in Anthracite Mines, Northern Field: Anthracite Region of Pennsylvania, Project Number 1 (Lackawanna)

From Scope of Report: "The report covers the following: (a) A brief description of the proposed Conowingo tunnel system, which will drain the anthracite mines of Pennsylvania into the Susquehanna River at Conowingo. Md.; (b) economic development of the Northern field and the improvements desired; (c) geology and hydrology of the Northern field; (d) the basic problem, plans, and costs of Project No.1 (Lackawanna) ; (e) economic analysis and justification of the project; and (f) final recommendations, including financing and cooperation of local interests."
Date: 1954
Creator: Ash, S. H. (Simon Harry), b. 1889; Dierks, H. A.; Kynor, H. D.; Lesser, W. H.; Miller, P. S. & Romischer, W. M.
System: The UNT Digital Library