Ultrafine Grinding of Several Industrial Minerals by the Attrition-grinding Process

Sulfur in Lignite: Form and Transformations on Thermal Treatment, Issues 5621-5640

Process Development in Removing Sulfur Dioxide from Hot Flue Gases (in Four Parts).: Laboratory-scale pulverized-coal-fired furnace. 2

Ilmenite and Other Black-sand Minerals in the Gold Fork Placer Deposit, Valley County, Idaho: Issues 5391-5400

Flotation of Beryl from North-eastern Pegmatites: A Progress Report, Issues 5761-5780

Report of Investigations: no.7381 to date

Heats and Free Energies of Formation of Vanadium Nitride and Vanadium Carbide: Issues 6161-6180

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

Extraction of Manganese from Georgia Umber Ore by a Sulfuric Acid-ferrous Sulfate Process (in Two Parts).: Countercurrent-decantation extraction and agglomeration of leached residue tests. 1

Multiple Zone Mining Plus Beneficiation of Western Phosphate Rock: A Cost Estimate and Comparison with Selective Mining, Issues 7501-7520

A One-step Operation for Recovery of Manganese as Chloride from Ores and Slags: 1966

Heats of Combustion and Formation of Molybdenum Subnitride and Chromium Subnitride: 1959

Metallurgical Studies of Rhodonite Ores, Silverton District, Colorado (In Three Parts).: Melting, quenching, and acid leaching of concentrates and electrolytic recovery of manganese from solution. 3