In Situ Tests of Bearing Capacity of Roof and Floor in Selected Bituminous Coal Mines: A Program Report - Longwall Mining, Issues 7401-7420

Recovery of Alumina from Anorthosite, San Gabriel Mountains, California, Using the Lime Soda Sinter Process: With a Section on Geology by Gordon B. Oakeshott, Issues 6241-6295

Electrochemical Recovery of High-purity Nickel and Cobalt from Crude Nickel and Ferronickel

Use of Vacutainers for Collection of Mine Atmosphere Samples

Flue Gas Desulfurization by the Modified Citrate Process: Issue 8403

A Fluxless Method for Reclaiming Aluminum from Dross

Explosion Hazards of Ammonium Nitrate Under Fire Exposure

The Theory of Flammability Limits: Conductive-convective Wall Losses and Thermal Quenching, Issues 8461-8463; Issues 8465-8480

Direct Method Determination of the Gas Content of Coal: Procedures and Results, Issues 8501-8520

Underground Gasification of Coal: Second Experiment in Preparing a Path Through a Coalbed by Hydraulic Fracturing, Issues 5807-5813

Determining Phosphorous in Coal and Coke: Evaluation of Volumetric, Colormetric, and Gravimetric Methods, Issues 5741-5760

Analysis of Steelmaking Slags by Atomic Absorption Spectrophotometry Using Pressure Dissolution: 1978-1979

Reservoir Oil Characteristics, Greater Aneth Area, Utah: Unusual Saturation-pressure Variations, Issues 6181-6200

Low-temperature Heat Capacities and Entropies at 298.15 K of Some Sodium- and Calcium-aluminum Silicates: Issues 5852-5859

Probability Studies of the Incendivity of Permissible Explosives: Effect of Small Percentages of Sodium Chloride, Issues 5461-5480

Waste Lubricating Oil Research: Some Innovative Approaches to Reclaiming Used Crankcase Oil, Issues 7921-7930; Issues 7932-7939

Recovery of Mercury from Cinnabar Ores by Electrooxidation: Extraction Plant Amenability Tests, Issues 8081-8100

Development Testing and Analysis of Steel Fiber-reinforced Concrete Mine Support Members: Support System Design and Results of Laboratory Investigation and Full-scale Testing, Issues 8401-8420

Developing a Thermochemical Model for the Iron Blast Furnace: Model of Ideal Furnace at Equilibrium, Issues 6221-6240

Methods of Analyzing Oilfield Waters: Iodides, Bromides, Alkalinity, Acidity, Borate Boron, Total Boron, Organic Boron, Potassium, Calcium, Magnesium, Iron, Fluorides, and Arsenic, Issues 5801-5820