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Abstracts of Current Decisions on Mines and Mining: October, 1912 to March, 1913
Bulletin issued by the U.S. Bureau of Mines. From the Preface: "This publication is devoted exclusively to a review and abstracts of decisions based on the laws governing the rights and duties of mine owners, operators, miners, and persons trafficking in all kinds of mining properties. It includes abstracts of current decisions of all the Federal and State courts of last resort on questions relating to the mining industries" (p. 9).
Foundry-Cupola Gases and Temperatures
From Introduction: "Among the investigations that the Bureau of Mines is conducting with a view to increasing efficiency in utilization of fuels belonging to or for the use of the Government is an investigation of the processes that take place in a foundry cupola during a melt."
The Analysis of Black Powder and Dynamite
Report discussing methods used by the Bureau of Mines when examining a collection of explosives.
A Laboratory Study of the Inflammability of Coal Dust
From Introduction: "Much knowledge has been gained from the work done in the large galleries constructed at official and semiofficial stations in this country and abroad, but the study of the coal-dust problem in these galleries requires so much time and is so costly that there is a need of a reliable laboratory method for obtaining a classification if the great variety of dusts that occur in mines. The investigation described in this paper was an attempt to devise such a method."
Ignition of Mine Gases by the Filaments of Incandescent Lamps
From Introduction: "As part of the investigations of the cause of mine accidents and of the safest and most efficient methods of handling electricity underground, the Bureau of Mines undertook a study of ignition of mine gases by the filaments of electric incandescent lamps. This bulletin describes the investigation in detail and gives a complete record of the results obtained."
Mining and Treatment of Feldspar and Kaolin in the Southern Appalachian Region
From Introduction: "The investigation here reported has to do only with the dikes of the southern Appalachian region, in which abundance of each mineral is as in the order given above."
Sand Available for Filling Mine Workings in the Northern Anthracite Basin of Pennsylvania
From Introduction: "This report is issued by the Bureau of Mines in the interest of safer and efficient mining methods. Its purpose is to describe the sand deposits in the northern anthracite coal field in Luzerne and Lackawanna Counties, Pa."
The Selection of Explosives used in Engineering and Mining Operations
From General Statement: "This bulletin deals with the characteristic features of the principal explosives used in mining and engineering operations, and especially with the tests that show the suitability of different classes of explosives for different kinds of work."
Tests of Permissible Explosives
From Introduction: "A copy of the test requirements and the names of explosives on the permissible list dated March 1, 1913, are appended to this bulletin. An explosive is considered permissible for use in coal mines when it is similar in all respects to the sample that passed the tests required by the bureau, and when it is used in accordance with the conditions prescribed."
Electric Switches for use in Gaseous Mines
From Introduction: "The purpose of the investigation discussed in this bulletin, one of a series dealing with the use of electricity in mines, was to study the various means and methods used to confine the flashes that occur when a switch carrying electric current is opened."
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."
Fuller's Earth
For Introduction: "For these reasons an investigation of the mining, preparation, and use of fuller's earth in this country, especially in its application to edible oils, was conducted in order to ascertain why our own raw material has been deemed inapplicable to our needs."
National Mine-Rescue and First-Aid Conference: Pittsburgh, Pennsylvania, September 23-26, 1912
From Introduction: "It this report endeavor has been made to eliminate all unnecessary remarks; but in order that those who hold diverging views regarding the subjects discussed may have before them the arguments that led the conferees to vote for the 36 resolutions adopted, the discussion had in the committees and in open session is published practically in full. Moreover, for the information of those mining officials, operators, and surgeons who are unfamiliar with approved methods of first-aid training and training with breathing apparatus and safety devices and methods of rescue, it seems equally desirable that the few opening addresses and closing remarks made it general session should be published as an expression of the reasons for such work and for the conference."
Sampling Coal Deliveries and Types of Government Specifications for the Purchase of Coal
From Introduction: "Therefore the method of taking and preparing samples for shipment to the laboratory has been given fully as much care as the making of the analyses and tests, and a general plan of collecting samples fairly representative of the delivered coal has been evolved through various modifications and improvements based on experience and increased knowledge of the physical and chemical characteristics of the various coals that are purchased by the Government. The method that is in general use by the Government is described in the following pages."
The Titaniferous Iron Ores in the United States: Their Composition and Economic Value
From Introduction: "The summer of 1911 was spent in visiting the principal localities in the United States at which titaniferous iron ores occur, for the purpose making systematic collections of material. The following winter was spent in a study of the collected material in the geological laboratory of the John Hopkins University where the author contained as a Johnston scholar. This report is an account of the results obtained."
Oil and Gas Wells through Workable Coal Beds: Papers and Discussions
From Preface: "In carrying out such a policy with reference to the subject under consideration, the Bureau of Mines invited the State geologists, mine inspectors, and a number of coal operators and oil and gas well drillers from the States interested to meet representatives of the Bureau of Mines in Pittsburgh, Pa., for a discussion of the subject during February 7 and February 8, 1913. This adjourned meeting of the conference will be held at an early date and its report will be printed in a later edition of this bulletin, with such additional suggestions as may be received by the Bureau of Mines. The bureau will be glad, therefore, to receive at the earliest practicable date any additional suggestions or any additional information throwing light on the matters discussed in this bulletin."
The Origin of Coal
From Introduction: "The purpose of the studies that form the basis of this report was to learn from microscopic examinations of coal how far and in what ways the grouping of coal by types depends on differences in the kinds of plant material from which it was formed and on the conditions of its accumulation, or how far the special characters or qualities of coal of any type were determined by the nature and the state of the plate debris from which the coal was formed."
The Sampling and Examination of Mine Gases and Natural Gas
Report by the U.S. Bureau of Mines based on experiments performed in Pittsburgh, Pennsylvania to study mine gases. Findings in this bulletin include descriptions of the experiments and equipment used: "The first part of this report deals with the methods used by the bureau in the collection and examination of the various mine gases; the latter part discusses the bureau's methods of sampling and examining natural gas" (p. 5).
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."
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."
The Commercial Trend of the Producer-Gas Power Plant in the United States
From Introduction: "In investigating general problems that relate to the fuel resources of this country, and in testing fuels belonging to or for the use of the Government, the Bureau of Mines has given considerable attention to the efficiency and economic value of producer-gas power plants. This feeling of commercial decadence has become so general that the facts gleaned from an inspection of the summaries and charts presented in this bulletin will undoubtedly surprise those who have regarded the immediate downfall of the producer as inevitable."
First Series of Coal-Dust Explosion Tests in the Experimental Mine
From Introduction: "This report has been prepared, not only for the purpose of recoding the results of the first series of coal-dust tests conducted in the experimental mine of the Bureau of Mines, but also to place before the mining public a description of the mine and an account of the objects sought in an its establishment."
Investigations of Detonators and Electric Detonators
From Introduction: "The conclusions are given in this bulletin, which is published by the Bureau of Mines as one of the series of publications dealing with the testing of explosives and the precautions that should be taken to increase safety and efficiency in the use of explosives in mining operations. The results of the experiments described in this bulletin show that the average percentage of failures of explosives to detonate was increased more than 20 per cent when the lower grades of electric detonators were used in instead of No. 6 electric detonators, and was increased more than 50 percent when these lower grades were used instead of No. 8 electric detonators."
Fuel-Briquetting Investigations, July, 1904, to July, 1912
Report discussing a series of fuel-testing investigations that U.S. Geological Survey began in 1904 for the purpose of analyzing and testing the coals and lignites in the United States in order to determine their fuel values and the most efficient methods of utilizing them for different purposes. Types of tests undertaken included chemical analyses, steaming tests, gas-producer tests, briquetting tests, coking tests, and washing tests of samples collected from the various coals fields of the country. Bulletins presenting the results of these investigations have been periodically published but as supply has run out, the Bureau of Mines has decided to compile the most important facts of these bulletins in one volume along with the results of all other briquetting investigatins undertaken by the government from July 1, 1904, to July 1, 1912.
Hydraulic Mine Filling: Its Use in the Pennsylvania Anthracite Fields, A Preliminary Report
Report issued by the Bureau of Mines over studies conducted on hydraulic mine filling. The different uses of this type of mine filling are discussed. This report includes tables, and illustrations.
Density and Thermal Expansion of Ethyl Alcohol and of its Mixtures with Water
Report issued by the Bureau of Standards over the thermal expansion of ethyl alcohol. As stated in the introduction, "the scope of the present work includes the preparation of pure anhydrous ethyl alcohol, the determination of the density and thermal expansion of this alcohol and its mixtures with water, and the construction from these data of tables for convenient use" (p. 328). This report includes tables, and illustrations.
Analysis of Alternating-Current Waves by the Method of Fourier, with Special Reference to Methods of Facilitating the Computations
Report issued by the Bureau of Standards over analysis of alternating currents. These currents are applied with the Fourier method. Descriptions of the method, and the results are presented. This report includes tables, and illustrations.
Sanitation at Mining Villages in the Birmingham District, Alabama
Technical paper issued by the Bureau of Mines over sanitary conditions in Birmingham district mining villages. The sanitation procedures and conditions of various villages are presented. This report includes photographs, and illustrations.
Metallurgical Coke
Technical paper issued by the Bureau of Mines over studies on metallurgical coke. As stated in the introduction, "in this paper the attempt is made to summarize the history of coke making in the United States, to indicate the development of different methods and the modern types of ovens, and to point out the composition and physical properties of the metallurgical cokes produced in this country" (p. 5). This paper includes tables, illustrations, photographs, and a map.
Life Zones and Crop Zones of New Mexico
Discusses geography, climate, agricultural practices, and crops of each life zone in New Mexico. Provides mammal, breeding bird, reptile, amphibian, and plant species list for each zone. Includes a life zone map.
Contributions to Economic Geology (Short Papers and Preliminary Reports), 1911: Part 1 -- Metals and Nonmetals Except Fuels
From introduction: The growing economic importance of the Carrville district, Trinity County, California merits notice, and it is hoped that this brief report will direct attention toward it, to the end that mining in general may be benefited.
Geology and Ore Deposits of Lemhi County, Idaho
From introduction: The present report embodies the results of reconnaissance studies in the nineteen mining districts of Lemhi County, Idaho.
The San Franciscan Volcanic Field, Arizona
Introduction: This report deals primarily with the volcanic phenomena of the region as determined in the field and laboratory.
Recurrent Tropidoleptus Zones of the Upper Devonian in New York
From introduction: This report describes the four zones, three well-marked and one subordinate, in the Upper Devonian rocks, each of which contained several species that are common in the typical Hamilton formation of the Cayuga Lake section and are associated with very few of the really characteristic species of the faunas normal to the formations in which they are found.
Geology and Ore Deposits of the San Francisco and Adjacent Districts, Utah
From introduction: This report describes the mapping of the surface geology of the San Francisco and adjacent districts in Utah.
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