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Recovery percentage of bituminous coal deposits in the United States (in two parts).

Dewatering coal flotation tailing by the admixture of crushed washery refuse

Optical properties of glass :transmission losses of eyepieces used in mine environment

Vapor pressures of liquid molybdenum (2,890⁰ to 2,990⁰ K) and liquid zirconium (2,229⁰ to 2,795⁰ K)

Kinetics of formation of carbon dioxide and carbon from carbon monoxide in presence of iron pellets

Physical strength of iron ore pellets at elevated temperatures

Liquidus temperatures of titaniferous slags (in three parts).

Oil yields of Green River oil shale from Colorado Corehole No. 1

Extraction of 8-hydroxyquinoline complexes of trace elements from tungsten solutions

High-temperature heat contents and entropies of dehydrated analcite, kaliophilite, and leucite

Revegetation studies at three strip-mine sites in north-central Pennsylvania

Equations for calculating various thermodynamic functions of a two-component system from an empirical equation of state, including liquid-vapor equilibria data

Performance of open-circuit self-contained breathing apparatus at -25⁰ F

Investigation of flame propagation characteristics in layered gas mixtures

Recovery of alumina and iron from Pacific Northwest bauxites by the Pedersen process

Kinetics of the initial reduction stages of magnetite in hydrogen

Parameters affecting reduction-induration of unfired magnetite pellets

Methods for producing alumina from anorthosite :an evaluation of a lime-soda sinter process

Performance of the hydrocyclone as a fine-coal cleaner

Piezoelectric pulsing equipment for shear wave velocity measurements in rock samples

Thermodynamics of nonlinear electromagnetic-fluid systems

Study of columbium and tantalum alloys

Preparation of biodegradable synthetic detergents from low-temperature lignite tar

Three-piece concrete sets for small openings :a progress report

Effects of boron and of boron with carbon on the mechanical properties of vanadium

Chromium by thermal decomposition of bisbenzene chromium

Improved method for calculating areas and shape factors of flow nets

Electrical resistivity of fly ash at temperatures to 1,500⁰ F

Evaluation of rolling slabs of zinc-copper-titanium alloys cast under semicontinuous conditions

Low-temperature chlorination of ferrochromium :preliminary studies

Hydraulic coal mining research :assessment of parameters affecting the cutting rate of bituminous coal

Transverse force produced by tensioned expansion-shell-type rock-bolt anchors

Properties of anthracite from the Bottom Ross bed

Face ventilation in underground bituminous coal mines :airflow characteristics of flexible, spiral-reinforced ventilation tubing

Storage stability of gasoline :comparison of storage and rapid bomb aging

Liquidus temperatures of titaniferous slags (in three parts).

An electrolytic process for separating nickel and cobalt

Effects of adding rare-earth silicides, aluminum, and cryolite to molten steel

A Petrofabric Study of Tectonic and Mining-Induced Deformations in a Deep Mine

Diesel Exhaust Contamination of Tunnel Air

Qualitative and Quantitative Aspects of Crude Oil Composition

New England Beryllium Investigations

Microfilming Maps of Abandoned Anthracite Mines: Mines in the Wyoming Basin, Northern Anthracite Field

Copper Leaching Practices in the Western United States

Dimension Stone

Tunneling Technology: Its Past and Present

Processing characteristics of crude oils from the Williston Basin in Montana, North Dakota, and South Dakota

X-Ray Studies of Coals and Carbonaceous Materials

Hydrogenation of Coal and Tar

Tunneling: Recommended Safety Rules


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