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Description: From Introduction: "This report covers the essential features of the asbestos industry, including occurrence, production, mining, milling, utilization, international trade, and marketing."
Date: 1937
Creator: Bowles, Oliver

Limits of Inflammability of Gases and Vapors

Description: From Definitions: "It is the object of this paper to present the results of a critical review of all figures published on the limits of inflammability of combustible gases and vapors when in admixture with air, oxygen, or other "atmosphere." Suspended dusts and liquid mists are not considered."
Date: 1931
Creator: Coward, H. F. & Jones, G. W.

Manufacture of Paraffin Wax from Petroleum

Description: From Introduction: "The primary purpose of this bulletin is to describe the metallurgical treatment and properties of the alloys as developed in research at the laboratories of the Bureau of Mines at Rolla, Mo., and to present a substantial amount of unpublished data."
Date: 1935
Creator: Espach, Ralph H.

Liquid-Oxygen Explosives

Description: From Introduction: "The purpose of this bulletin is to examine the advantages and disadvantages of L. O. X., both in the light of experimental investigations by the Bureau of Mines and the results in actual blasting, and to discuss the probable future fields of usefulness for this novel type of explosive."
Date: 1932
Creator: Perrott, G. St. J. & Tolch, N. A.

Paraffin and Congealing-Oil Problems

Description: From Scope of Report: "This report is in two parts-the major or first part is a discussion of the results obtained from field studies of the factors responsible for the deposition of paraffin and the congealing of oil and of practical methods of combating these problems. The second part of the report deals with the analyses of crude waxes or paraffin obtained from different representatives crude oils."
Date: 1932
Creator: Reistle, C. E., Jr.

Permissible Methane Detectors

Description: From Function of Methane Detectors: "The object of this paper is to present to the mining public the results of the permissibility tests of the detectors that have been approved, also to give the results of a series of tests conducted to determine their practicability."
Date: 1930
Creator: Hooker, A. B.; Fene, W. J. & Currie, R. D.

Permissible Electric Mine Lamps

Description: From Introduction: "This paper gives a brief account of the introduction of electric lighting in mines, reviews some of the preliminary and approval work on electric mine lamps up to July, 1917, when a previous bulletin on electric lamps was issued, and describes the lamp-approval work from that date of July, 1930."
Date: 1930
Creator: Ilsley, L. C. & Hooker, A. B.

Gases that Occur in Metal Mines

Description: From Conclusions: "Many gases are harmful to man are widely prevalent in metal mines. They influence the safety, health and efficiency of miners; workers and officials should therefore become much more familiar with there occurrence, detection, and handling. The principal means of combating these gases are proper ventilation of all parts of a mine and the adoption of measures to minimize fire hazards and to control a mine fire promptly should it occur."
Date: 1931
Creator: Harrington, D. & Denny, E. H.

Commercial Possibilities of the Texas-New Mexico Potash Deposits

Description: From Introduction Results of Test: "Among the domestic potash resources which were brought to the attention of the country during and after the war but were not utilized as a source of potash, although they indicated that they might furnish the cheap potash desired, were the potash deposits occurring with the think rock-salt formations of western Texas and southeastern New Mexico."
Date: 1930
Creator: Wroth, James S.

Engineering Factors in the Ventilation of Metal Mines

Description: From Introduction Purpose and Scope of Report: "In the belief that the quickest and cheapest method of obtaining effective ventilation of metal mines with regard to air conditions that promote efficiency, health, and safety is through more general application of the engineering factors involved rather than by trial and error and this method of attacking ventilation problems will be facilitated by a simple, concise statement of these factors and the methods of using them, an attempt is made in this bulletin to present the subject of metal-mine ventilation to mine operators in a practical way."
Date: 1935
Creator: McElroy, G. E.

Crushing and Grinding

Description: From introduction: "The purpose of this bulletin is to discuss the theory of crushing and grinding in relation to present-day discoveries and developments and to consider the various mechanical appliances from a theoretical basis."
Date: 1938
Creator: Gross, John

Clinker Formation as Related to the Fusibility of Coal Ash

Description: From Introduction Arrangement of Report: "The results of this investigation are presented in two main divisions. The first part covers the chemical and physical tests on average samples of the coals used-chemical analysis, float-and-sink tests to determine distribution of the ash, determination of the forms of sulphur, chemical analyses of the ash, and ash-fusabilibity determinations. The second part covers the clinkering studies and the comparisons of the results with the ash-fusibilty and other tests."
Date: 1932
Creator: Nicholls, P. & Selvig, W. A.

Static Electricity in Nature and Industry

Description: From Introduction: "In this bulletin "static electricity" is used in its commonly accepted meaning to include the various manifestations that result from the coming together or neutralization of positive and negative charges with have been separated by friction between unlike substances or otherwise. Although the scope of the this report is rather broad, it deals primarily with static electricity as a hazard. Casual and experimental observations recorded herein are thus given for a background and for the purpose of suggesting hazards not yet recognized."
Date: 1939
Creator: Guest, Paul G.