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

Test Operation of a Pneumatic Vibrating-blade Planer in Phosphate and Coal: A Progress Report on Planer-mining Research, 1958-60, Issues 6121-6140

Methods for Producing Alumina from Clay: An Evaluation of a Nitric Acid Process

Low-temperature Heat Capacity and High-temperature Heat Content of Mullite

Thermodynamic Data for Columbium (niobium) Carbide

A Cost Estimate of the Bayer Process for Producing Alumina

Low-temperature Heat Capacities and Entropies at 298.15° of Sulfides of Arsenic, Germanium and Nickel: 1963

Heats and Free Energies of Formation of Gallium Sesquioxide and Scandium Sesquioxide: Issues 5900-5997

A Method of Obtaining the Ultraviolet and Visible Spectra of Insoluble Materials: Use of a Low-molecular-weight Polyethylene as a Matrix Material, Issues 6421-6440

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

Studies on the Spectrochemical Analysis of Solutions: Use of Carrier-precipitation and a Filter Electrode, Issues 6241-6260

Titanium Electrorefining: Cathode Studies and Deep Bath Deposition, Issues 5481-5490

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

The Nicaro (Cuba) Nickel Ores: Basic Studies, Including Differential Thermal Analysis in Controlled Atmospheres, Issues 5491-5510

Low-temperature Heat Capacities and Entropies at 298.150 K. of Diaspore, Kaloinite, Dickite, and Halloysite

Low-temperature Heat Capacities and Entropies at 298.150 K. of Magnesium Metavanadate and Maganesium Pyrovanadate

Low-temperature Heat Capacities and Entropies at 298.150 K of Goethite and Pyrophyllite

High-temperature Heat-content and Entropy Data for Vanadium Silicide (V3Si)

Low-temperature Heat Capacities and Entropies at 298.150 K of Crystalline Silicates of Barium and Strontium