TRAIL - Technical Report Archive and Image Library

Block-caving methods at the Sunrise mine, Platte County, Wyo.

International cooperation in reducing mine hazards

Safety aspects of controls and operations of belt conveyors in coal mines

Block caving at Kelley Mine, the Anaconda Co., Butte, Mont.

Health and safety activities of the Bureau of Mines :fiscal year 1955

Mining methods and costs at the Morning mine, American Smelting & Refining Co., Shoshone County, Idaho

Research and technologic work on coal and related investigations :1954

National first-aid and mine rescue contest :Knoxville, Tenn., October 10, 11, and 12, 1955

Drill-dust collectors approved by the Bureau of Mines as of January 31, 1956

Safety with solvents

A rapid method for fluorometric determination of beryllium

Methane buildup during cutting and continuous mining operations

Preparation characteristics of coal from Mingo County, W. Va.

Physical properties of mine rock, Part IV :including indexes to Parts I, II, III, and IV

Potential ignition hazards associated with compressed-air blasting using a compressor underground

Coal-mine-explosion research by the Bureau of Mines, 1954-55

Production of titanium castings

Laboratory concentration of various Alaska copper ores

Diamond-bit performance in schist

Use of anthrafines for producing metallurgical coke

Studies of the Snettisham magnetite deposit, southeastern Alaska

Anthracite mechanical-mining investigations :use of yielding steel supports (props) in combination with backfilling for mining thick, flat beds

Principles of reinforcing bedded mine roof with bolts

Titanium plant at Boulder City, Nev. :operating costs

Mobile laboratory for recording blasting and other transient phenomena

Safety in pneumatic drilling and related blasting operations. Opencut mine, Morenci Branch, Phelps Dodge Corp., Morenci, Ariz.,

Injury experience in coal mining, 1955-56 :analysis of mine safety factors, related employment, and production data

Analysis of crude shale oil.

Cementation of bituminous-coal-mine roof strata.

Development of a chloride volatilization process for manganese ores from Aroostook County, Maine :progress report

Carbonizing tests with Tuscaloosa oven :use of fluid petroleum coke as a blending agent

Anthracite mechanical-mining investigations :second testing of Brieden pneumatic packing machine

Carbonizing properties of Somerset County, Pa., coals

Beneficiation studies of nickeliferous ores from the Shamrock Mine, Jackson County, Oreg., and the Congress Mine, Ferry County, Wash.

Spectrochemical analysis of titanium and titanium alloys by a porous cup-spark method

Preliminary mineral-dressing investigation of East Texas brown iron ores

Spectrophotometric determination of tantalum with gallic acid

Separation of tantalum-columbium by solvent extraction

Synthetic liquid fuels :annual report of the secretary of the interior for 1955.

Calculating oil recoveries for solution-gas-drive reservoirs :evaluation of permissable errors in P.V.T. data and kg/ko ratios

Leadville drainage tunnel second project,Lake County, Colo.

An investigation of some variables in the treatment of scheelite with soda ash

Producing magnesium by silicothermic reduction

Cost data for gasification of lignite in an externally heated retort

Electric smelting of low-grade chromite concentrates

Utilizing offgrade manganese materials from Montana

Fabricating consumable electrodes of zirconium, titanium, and similar metals for arc melting

Exploration and utilization studies :John Day chromites, Oregon

Preparation characteristics of coal from Perry County, Ky.

Reconnaissance of phosphate-rock deposits in Arkansas, Kansas, Oklahoma, and Texas

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