Volume 211
Society of Mining Engineers of A.I.M.E. 1958
Mining, Minerals Beneficiation, Coal, Industrial Minerals, Geology, Geophysics This Volume is made up of Papers and Discussions presented at Meetings held at New York, February 20-23, 1956; New Orleans, February 24-28, 1957; New York, February 16-20, 1958; and Spokane, April 17-19, 1958
Title Page
Foreword By Stanley D. Michaelson, President
Contents

Mining

TITLE AUTHOR
Planning Deep Mining at Homestake A. H. Shoemaker
Precision Survey for Tunnel Control Douglas D. Donald
U. S. Government Support to Mineral Industries of Latin America Sumner M. Anderson
Lucky Friday Mine: History, Geology, and Development William T. Folwell

Minerals Beneficiation

TITLE AUTHOR
Flotation of a Canadian Kyanite R. A. Wyman
Rotobelt Filter, New Tool in Minerals Beneficiation C. F. Cornell, R. C. Emmett, and D. A. Dahlstrom
Relation of Magnetic Susceptibility to Mineral Composition Ernest M. Spokes and David R. Mitchell
Discussion Ernest M. Spokes and David R. Mitchell
Intergranular Comminution by Heating J. H. Brown, A. M. Gaudin, and C. M. Loeb, Jr.
Fine Grinding at Supercritical Speeds R. T. Hukki
Discussion - Correction R. T. Hukki
Grinding Ball Size Selection F. C. Bond
Relative Effectiveness of Sodium Silicates of Different Silica-Soda Ratios as Gangue Depressants in Non- metallic Flotation C. L. Sollenbeger and R. B. Greenwalt
Effect of Chemical Reagents on the Motion of Single Air Bubbles in Water D. W. Fuerstenau and C. H. Wayman
Graphical Representation of Theoretical Soluble Losses by CCD R. J. Woody
Distribution Curves for Sink-and-Float Separation of Iron Ores Rudolph G. Wuerker
Iron Oxide Slime Coatings in Flotation D. W. Fuerstenau, A. M. Gaudin, and H. L. Miaw
Scale-Up Relationships in Spodumene Flotation W. E. Horst
Advances in Magnetic Separation of Ores L. A. Roe
Magnetic Separation for Mesabi Magnetite Taconite J. E. Forciea, L. G. Hendrickson, and O. E. Palasvirta

Coal

TITLE AUTHOR
Convertol Process A. H. Brisse and W. L. McMorris, Jr.
Coal Mine Bump Symposium: Introduction  
U. S. Bureau of Mines Investigations and Research on Bumps E. F. Thomas
Ground Stress Investigations in Canadian Coal Mines A. Brown
Control of Mountain Bumps in the Pocahontas No. 4 Seam W. G. Talman and J. L. Schroeder, Jr.
Mountain Bumps at the Sunnyside Mines J. Peperakis
Deep Coal Mining in Springhill No. 2 Mine W. F. Campbell
Coal Mine Bumps Can Be Eliminated H. E. Mauck
Causes and Control of Coal Mine Bumps C. T. Holland

Industrial Minerals

TITLE AUTHOR
Resources and Utilization of North Carolina Pyrophyllite Jasper L. Stuckey
Instrumentation in Ideal's New Houston Cement Plant Thomas B. Douglas
Application of Electrostatics to Potash Beneficiation I. M. LeBaron and W. C. Knopf
Application of Electrostatics to Concentration of Coarse Pebble Phosphate E. Northcott and F. N. Oberg
Application of Electrostatics to Feldspar Beneficiation E. Northcott and I. M. LeBaron
The Geiger Counter as a Control Tool in Processing Potassium-Bearing Ores W. C. Knopf and G. Samsel

Geology

TITLE AUTHOR
Porphyry Copper Deposit, Cuajone, Peru W. C. Lacy
Mineralized Cretaceous Horizons in Northeastern Mexico P. Sanchez-Mejorada
Geology of Toquepala, Peru Kenyon Richard and James H. Courtright
Discussion Kenyon Richard and James H. Courtright
Structural Control of Contact Metasomatic Deposits in the Peruvian Cordillera A. J. Terrones L.
Lineament Tectonics and Some Ore Districts of the Southwest Evans B. Mayo

Geophysics

TITLE AUTHOR
Case History of the Juniper Prospect S. H. Ward and R. A. Barker
Seismic-Refraction Method in Ground-Water Exploration W. E. Bonini and E. A. Hickok
Significance of Geochemical Distribution Trends in Soil D. H. Yardley
Rubeanic Acid Field Test for Copper in Soils and Sediments H. V. Warren and R. E. Delavault

Technical Notes

TITLE AUTHOR
Cleaning Fine Coal with Newly Developed Jig E. H. Citron
Study of Thorium and Uranium Minerals by X-Ray Microscopy S. Yamaguchi
Improved Methods for Measuring Aeration in Flotation Cells J. B. Gayle

Abstract

TITLE AUTHOR
Interpretation of the Literature on the Mechanism of the Hall Process John J. Stokes, Jr.

Discussion of Papers Published Prior to 1958

TITLE AUTHOR
Genesis of Titaniferous Magnetites and Associated Rocks of the Lake Sanford District, New York J. L. Gillson
Energy-Size Reduction Relationships In Comminution R. J. Charles
Petrologic Methods for Application to Solid Fuels of the Future James M. Schopf
Mineralizing Solutions That Carry and Deposit Iron and Sulfur B. S. Butler
Filtration and Control of Moisture Content on Taconite Concentrates A. F. Henderson, C. F. Cornell, A. F. Dunyon, and D. A. Dahlstrom

Extractive Metallurgy

As many members of the Society of Mining Engineers are interested in the papers of the Extractive Metallurgy Division of The Metallurgical Society of AIME, the titles of the papers published for the Division in 1958 are listed below. These papers, and discussion, appear in A.l.M.E. Transactions (1958) 212, The Metallurgical Society
TITLE AUTHOR
Effect of Roasting on Recovery of Uranium and Vanadium from Carnotite Ores by Carbonate Leaching J. Halpern, F. A. Forward, and A. H. Ross
Interpretation of the Literature on The Mechanism of the Hall Process J. J. Stokes, Jr.
Sinter Roasting of Lead-Rich Galena Concentrates at the Electrothermic Lead Plant of the Ronnskar Works, Sweden S. J. Wallden, N. B. Lindvall, and K. G. Gorling
The Reduction of Cupric Salts in Aqueous Perchlorate and Sulfate Solutions by Molecular Hydrogen E. R. MacGregor and J. Halpern
A Kinetic Study of the Dissolution of UO2 in Carbonate Solution R. L. Pearson and M. E. Wadsworth
A Kinetic Study of the Oxidation of Pyrite in Aqueous Suspension D. R. McKay and J. Halpern
The Electrolytic Preparation of Molybdenum from Fused Salts. V. Electrorefining Studies in the Presence of Tin, Iron, Copper, Silicon, and Nickel D. E. Couch and S. Senderoff
The Rate of Infiltration of Metals K. A. Semlak and F. N. Rhines
Density of Molten Cu-Fe Sulfide Mattes M. Bourgon, G. Derge, and G. M. Pound
The Dissolution of Sulfide Ores in Acid Chlorine Solutions: A Study of the More Common Sulfide Minerals K. J. Jackson and J. D. H. Strickland
The Effect of Additions on the Exchange of Chlorine between Calcium Chloride and Metal Oxides N. F. Neumann and A. W. Schlechten
The Improved Wheaton-Najarian Vacuum Condenser H. K. Najarian
The Determination of Hydrogen in Titanium and Its Alloys–A Critical Review T. D. McKinley
A Kinetic Study of the Dissolution of UO2 in Sulfuric Acid T. L. MacKay and M. E. Wadsworth
Data on Copper Converter Practice in Various Countries F. E. Lathe and L. Hodnett

INDEX

TITLE AUTHOR
Index