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The Calcite Marble and Dolomite of Eastern Vermont

Description: From introduction: The object of this bulletin is twofold-to locate definitely and to describe accurately the marbles and dolomites of eastern Vermont, with a view to setting forth their possible economic uses and to discuss whatever features of scientific interest they may present.
Date: 1915
Creator: Dale, T. Nelson
Partner: UNT Libraries Government Documents Department

Preliminary report on the problem of the atmosphere in relation to aeronautics

Description: A report to the Weather Bureau, Washington DC, from the chairman of the Subcommittee on the Atmosphere in Relation to Aeronautics describing the activities accomplished and the proposal of work to be undertaken by the subcommittee.
Date: November 9, 1915
Creator: Marvin, Charles F.
Partner: UNT Libraries Government Documents Department

Report on behavior of aeroplanes in gusts

Description: Part 1 presents the results of a wind tunnel test of a biplane model with an 18 inch span. The lift, drift, and pitching moment were measured for a series of angles of incidence corresponding to the maximum possible changes of flight attitude. Only the discussion of symmetrical or longitudinal changes is given. From the observed rate of variation of the forces and pitching moment, it was possible to calculate the derivatives needed in the complete theory of longitudinal stability in still air. The damping of the pitching oscillation was also determined experimentally. Part 2 presents a theoretical method for determining the effects of gusts on aeroplanes in the following cases: (1) head-on gusts rising from 0 to j feet per second with various degrees of sharpness, (2) up gusts of the same type, (3) rotary gusts of the same type, (4) rear gusts and down gusts are included by merely changing the sign of j.
Date: October 7, 1915
Creator: Hunsaker, Jerome C. & Wilson, Edward Bidwell
Partner: UNT Libraries Government Documents Department

Relative worth of improvements of fabrics

Description: Report presents an equation that connects all the major qualities of a fabric, from which the fabric may be rigidly designed with respect to maximum ultimate economy.
Date: August 17, 1915
Partner: UNT Libraries Government Documents Department

Abstracts of Current Decisions on Mines and Mining: December, 1913, to September, 1914

Description: Bulletin issued by the U.S. Bureau of Mines: "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" (Bulletin 61, p. 9).
Date: 1915
Creator: Thompson, J. W.
Partner: UNT Libraries Government Documents Department

Occurrence of Explosive Gases in Coal Mines

Description: From Introduction: "This report presents the results of an investigation begun by the Government in the summer of 1907, the investigation being started under the immediate supervision of Dr. J. A Holmes and continued under him as director after it was transferred to the Bureau of Mines in 1910, the field studies being completed in the spring of 1912. The purpose of the investigation was to obtain information on the origin of the inflammable gases in coal and the conditions under which they occur."
Date: 1915
Creator: Darton, N. H.
Partner: UNT Libraries Government Documents Department

Gasoline Mine Locomotives in Relation to Safety and Health

Description: From Introduction: "The investigation described in this bulletin was undertaken by the Bureau of Mines in an endeavor to obtain exact information on some of the basal questions involved in the use of gasoline locomotives in mines, this investigation being one of many that the bureau has been conducting in its efforts to increase safety and efficiency in mining."
Date: 1915
Creator: Hood, O. P. & Kudlich, R. H.
Partner: UNT Libraries Government Documents Department

Rules and Regulations for Metal Mines

Description: Report discussing a committee being formed and rules along with regulations for metal mines.
Date: 1915
Creator: Ingalls, W. R.; Douglas, James; Finlay, J. R.; Channing, J. Parke & Hammond, John Hays
Partner: UNT Libraries Government Documents Department

Metallurgical Smoke

Description: From Introduction: "This bulletin is published by the bureau primarily for persons who seek information on the subject of metal-lurgical smoke but are unacquainted with the technical language of metallurgy. The effort is made in this paper to present the problem of metallurgical smoke as it actually exists, without bias of any kind."
Date: 1915
Creator: Fulton, Charles H.
Partner: UNT Libraries Government Documents Department

Report of the Selby Smelter Commission

Description: From Preface: "This bulletin presents the report of the commission and the papers, prepared by the various experts, which give the results of investigations undertaken by the commission and form the basis of its findings."
Date: 1915
Creator: Holmes, J. A.; Franklin, Edward C.; Gould, Ralph A. & Gould, Ralph A.
Partner: UNT Libraries Government Documents Department

Abstracts of Current Decisions on Mines and Mining: October, 1914, to April, 1915

Description: Bulletin issued by the U.S. Bureau of Mines: "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" (Bulletin 61, p. 9),
Date: 1915
Creator: Thompson, J. W.
Partner: UNT Libraries Government Documents Department

Sampling and Analyzing Flue Gases

Description: From Introduction: "The material presented in this report is arranged in two parts. The first part contains the description of the apparatus and the methods used in sampling and analyzing flue gases. The second part gives experimental results obtained with the different methods of sampling and collecting of flue gas that are recommended in the first part of the report."
Date: 1915
Creator: Kreisinger, Henry & Ovitz, F. K.
Partner: UNT Libraries Government Documents Department

A Primer on Explosives for Metal Miners and Quarrymen

Description: From introduction: "This bulletin aims to give the metal miner and the quarryman information similar to that given the coal miner in Bulletin 17. Inflammable gas or dust is seldom, if ever, found in quarries or metal mines, and the danger from using explosives there is less than in coal mines; but, as the figures show, the number of men killed and injured yearly in accidents caused by explosives proves the need of both miners and mine officials striving to see that none but proper explosives are used and these are used properly."
Date: 1915
Creator: Munroe, Charles E. & Hall, Clarence
Partner: UNT Libraries Government Documents Department

The Smelting of Copper Ores in the Electric Furnace

Description: From Introduction: "The bulletin presents, first, a critical discussion of the possibility of smelting copper ores in the electric furnace; second, the results of the experimental work of other investigators on the electric smelting of copper; third, the results of experiments by the authors on the electric smelting of native copper concentrates and sulphide copper ores; and, fourth, a comparison of the electric furnace with the blast furnace and reverberatory furnace for copper smelting."
Date: 1915
Creator: Lyon, Dorsey A. & Keeney, Robert M.
Partner: UNT Libraries Government Documents Department

The Vapor Pressure of Arsenic Trioxide

Description: Technical paper issued by the Bureau of Mines over investigations of vapor pressure. The methods and equipment used for the investigations are presented. The results are discussed. This paper includes tables, illustrations, and photographs.
Date: March 1915
Creator: Welch, H. V. & Duschak, L. H.
Partner: UNT Libraries Government Documents Department

Construction and Operation of a Single-Tube Cracking Furnace for Making Gasoline

Description: Technical paper issued by the Bureau of Mines over the construction of cracking furnaces for gasoline production. Descriptions of the equipment used for construction are presented and discussed. This paper includes photographs.
Date: July 1915
Creator: Bowie, C. P.
Partner: UNT Libraries Government Documents Department

A Review of the American Moles

Description: Discusses habits; economic status; characteristics and development of young; pelages and molts; and geographic, individual, sexual, and age variation. Describes subfamilies, history, and generic names of the family Talpidae. Describes, lists locations, and provides a key for genera, species and subspecies.
Date: September 30, 1915
Creator: Jackson, Hartley H. T.
Partner: UNT Libraries Government Documents Department

Revision of the Pocket Gophers of the Genus Thomomys

Description: Describes habits, predators, morphology, sexual variation, pelages, and distribution of pocket gophers. Describes genera and group relations. Describes, lists locations and distribution, and provides a key for species and subspecies.
Date: November 15, 1915
Creator: Bailey, Vernon
Partner: UNT Libraries Government Documents Department

Revision of the American Marmots

Description: Discusses history, nomenclature, common names, habits, external characters, and specimens of American marmots. Describes, lists locations, and provides a key to species and subspecies.
Date: April 7, 1915
Creator: Howell, Arthur H.
Partner: UNT Libraries Government Documents Department

Equilibrium in the System: Lead Acetate, Lead Oxide, and Water, at 25⁰

Description: Report issued by the Bureau of Standards over studies on basic acetates and their importance as an effective clarifying agent. The analytical procedures and the results of the studies are discussed. This report includes tables, and illustrations.
Date: 1915
Creator: Jackson, Richard F.
Partner: UNT Libraries Government Documents Department

Graphic Studies of Ultimate Analyses of Coals

Description: Technical paper issued by the Bureau of Mines over studies of analyses of coals. The results are discussed and presented on various diagrams. This paper includes tables, and illustrations.
Date: December 1915
Creator: Ralston, Oliver C. & Porter, Horace C.
Partner: UNT Libraries Government Documents Department