Volume 187
Mining Branch 1950
Metal Mining, Minerals Beneficiation, Coal, Industrial Minerals, Geology, Mineral Industry Education, Business Administration, Geophysics
Title Page
Foreword
Contents

Metal Mining

TITLE AUTHOR
Sinking Star Shaft at Vanadium, New Mexico A. J. May
Practical Dust Control in Metal Mines W. C. Williamson and J. L. Shugert
Problems of a Mine Mechanization Program C. Kremer Bain
Health and Safety Practices at Pioche S. S. Arentz
Faster Calculation of Plane Triangulation Systems by Calculating Machine and Semigraphical Methods Richard Hamburger
Use of Concrete Underground Joseph Bernhardt
Review of Progress in the Caving of Asbestos Ore Gerald Sherman
Development in the Use of Steel for Underground Support F. J. Haller
A Classification and Application of Drill Jibs for Rock Drill Mounting O. J. Neslage and R. W. Jenkins
Development Work with Trackless Equipment Elmer A. Jones
Wrapping Pillars with Old Hoist Rope B. T. Wykoff
Roof Studies and Mine Structure Stress Analysis, Bureau of Mines Oil Shale Mine, Rifle, Colo. E. M. Sipprelle and H. L. Teichman
An Unusual Test of the Accuracy of Well-Surveying Methods S. H. Williston
Some Applications of Millisecond Delay Electric Blasting Caps D. M. McFarland
Aspects of Structure and Mineralization Used as Guides in the Development of the Picher Field J. Lyden

Minerals Beneficiation

TITLE AUTHOR
Measurement of Equilibrium Forces between an Air Bubble and an Attached Solid in Water T. M. Morris
Discussion T. M. Morris
Northern Rhodesia Mufulira Copper Mines Limited Grinding Tests on Conical Trunnion Overflow and Cylindrical Grate Ball Mills Jack White
Discussion Jack White
Developments in the Application of Activated Carbon to Cyanidation Including the Desorption of Gold and Silver from Carbons E. H. Crabtree, Jr., V. W. Winters, and T. G. Chapman
Continuous Countercurrent Decantation Calculations T. B. Counselman
Discussion T. B. Counselman
Effect of Conditioning on Flotation of Chalcocite S. B. Tuwiner and S. Korman
Radiotracer Studies on the Interaction of Dithiophosphate with Galena (Correction, p. 789) G. L. Simard, J. Chupak, and D. J. Salley
Experiences with a Density Recording and Controlling Instrument for Heavy-media Separation Units James J. Bean
Discussion James J. Bean
Behavior of Mineral Particles in Electrostatic Separation Shiou-Chuan Sun, J. D. Morgan, Jr., and R. F. Wesner
Discussion Shiou-Chuan Sun, J. D. Morgan, Jr., and R. F. Wesner
Use of an Induced Nuclear Reaction for the Concentration of Beryl A. M. Gaudin, John Dasher, James H. Pannell, and Wilfred L. Freyberger
Concerning the Adsorption of Dodecylamine on Quartz A. M. Gaudin and F. W. Bloecher, Jr.
Discussion A. M. Gaudin and F. W. Bloecher, Jr.
Conditioning and Treatment of Sulphide Flotation Concentrates Preparatory for the Separation of Molybdenite at the Miami Copper Company C. H. Curtis
The Burt Filter W. G. Woolf and A. Y. Bethune
Effect of BaCI2, and Other Activators on Soap Flotation of Quartz R. Schuhmann, Jr. and Brahm Prakash
Effects of Activators and Alizarin Dyes on Soap Flotation of Cassiterite and Fluorite R. Schuhmann, Jr. and Brahm Prakash
Discussion R. Schuhmann, Jr. and Brahm Prakash
An Electric Tramp Iron Detector for Ore Conveyor Belts (with discussion) C. M. Marquardt
Progress Report on Grinding at Tennessee Copper Company J. F. Myers and F. M. Lewis
Discussion J. F. Myers and F. M. Lewis
Relative Wear Rates of Various Diameter Grinding Balls in Production Mills (with discussion) D.E. Norquist and J. E. Moeller
Some Recent Investigations with the Dutch State Mines Cyclone Separator on Fine Coal Slurries S. A. Falconer
Discussion S. A. Falconer
Automatic Controls on Sand Pumps William B. Stephenson
A New Theory of Comminution Fred C. Bond and Jen-Tung Wang
An Improved Method of Gravity Concentration in the Fine-size Range Arvid Thunaes and H. Rush Spedden
Discussion Arvid Thunaes and H. Rush Spedden
The Use of Spiral Classifiers as Ball Mill Feeders T. C. King
The Action of Sulphide Ion and of Metal Salts on the Dissolution of Gold in Cyanide Solutions C. G. Fink and G. L. Putnam
Preliminary Report of Massco Circuitron A. E. Craig, W. J. Tait, and E. P. McCurdy
Discussion A. E. Craig, W. J. Tait, and E. P. McCurdy
Conductance Electrostatic Separation with Convective Charging F. Fraas and O. C. Ralston
Pilot-Plant Investigation of Concentration of Blackbird Cobalt Ore by Roast-Flotation Process S. R. Zimmerley and S. F. Ravitz
The Effect of Mill Speeds on Grinding Costs Harlowe Hardinge and R. C. Ferguson
Discussion Harlowe Hardinge and R. C. Ferguson
Separation of Precious Metals from Anode Slimes by Flotation R. T. Hukki and V. Runolinna
Progress Report on Grinding at Tennessee Copper Company J. F. Meyers and F. M. Lewis
The Probability Theory of Wet Ball Milling and Its Application E. J. Roberts
Effects of Rod Mill Feed Size Reduction J. J, Strohl and H. J. Schwellenbach
Laboratory Studies on Iron Ore Sintering and Testing F. M. Hamilton and H. F. Ameen

Coal

TITLE AUTHOR
Cyclone Thickener Applications in the Coal Industry M. G. Driessen and H. E. Criner
Discussion M. G. Driessen and H. E. Criner
Quantitative Efficiency of Separation of Coal Cleaning Equipment W. W. Anderson
Discussion W. W. Anderson
Some Factors Influencing the Performance of Single Retort Underfeed Stokers H. A. Baumann, T. S. Spicer, and C. C. Wright
Research in Coal Geology Gilbert H. Cady
Organizing and Financing Cooperative Research Elmer R. Kaiser
Operating Data for a Bird Centrifuge A. C. Richardson and Orville R. Lyons
Discussion A. C. Richardson and Orville R. Lyons
Coal Preparation for Synthetic Liquid Fuels W. L. Crentz, D. Doherty, and E. E. Donath
Discussion W. L. Crentz, D. Doherty, and E. E. Donath
Laboratory Control in Coal Washing and Drying Plants James J. Merle and Richard A. Mullins
The Mechanism of Coarse Coal and Mineral Froth Flotations Shiou-Chuan Sun and R. E. Zimmerman
The Colmol-A Continuous Mining Machine C. H. Snyder
Some Recent Investigations with the Dutch State Mines Cyclone Separator on Fine Coal Slurries S. A. Falconer
Discussion S. A. Falconer
Low-temperature Coke as a Reactive Carbon C. E. Lesher
An Oxidation Method for Investigating the Petrographic Composition of Some Coals Reynold Q. Shotts
The Cleaning of Fine Sizes of Bituminous Coals by Concentrating Tables R. E. Zimmerman
Specific Safety Problems Applicable in West Virginia Mines Arch J. Alexander
Air Pollution by Industrial Fumes, Gases, and Dusts Louis C. McCabe
Drying of Fine Coal in the Entrained and Fluidized State V. F. Parry and E. O. Wagner
Kerosine Flotation of Bituminous Coal Fines L. E. Shiffman
Discussion L. E. Shiffman
Laboratory Performance Tests of the Humphreys Spiral as a Cleaner of Fine Coal M. R. Geer, H. F. Yancey, C. L. Allyn, and R. H. Eckhouse
Discussion M. R. Geer, H. F. Yancey, C. L. Allyn, and R. H. Eckhouse
Rheolaveur System of Fine Coal Cleaning John Griffen
Mechanized Cutting and Face Stripping in the Ruhr R. R. Estill

Industrial Minerals

TITLE AUTHOR
Chromite and Other Mineral Occurrences in the Tastepe District of Eskisehir, Turkey Ferid Kromer
Comparative Furnace Designs for the Expansion of Perlite John B. Murdock and Herbert A. Stein
Notes on the Geology of the Potash Deposits of Germany, France, and Spain J. P. Smith
California Talcs Lauren A. Wright
Ground Water in California J. F. Poland
Discussion J. F. Poland
Studies of the Effect of Freight Rates on Marketing Northwest Industrial Minerals Leslie C. Richards
Fuel Economy in the Lepol Kilns R. A. Kinzie, Jr.
Industrial Mineral Economics and the Raw Materials Survey Raymond B. Ladoo and C. A. Stokes
Discussion Raymond B. Ladoo and C. A. Stokes
Production of Graded Glass Sand by Grinding and Classification M. M. Fine
Production of Ammonium Sulphate and Manganese Oxides Norman Ketzlach
Some Factors in the Selection and Testing of Concrete Aggregates for Large Structures Elliot P. Rexford
Discussion Elliot P. Rexford
Recent Developments in the Manufacture of Lightweight Aggregates John E. Conley and John A. Ruppert
Discussion John E. Conley and John A. Ruppert
Economic Factors in the Western Phosphate Industry Roscoe E. Bell
Corrosion Resistant Materials and Coatings in Trail Chemical Operations E. A. G. Colls
Production and Marketing of Garnet Abrasive Sands from Emerald Creek, Benewah County, Idaho John S. Crandall
Nonmetalliferous Mineral Resources in Arkansas W. B. Mather
Determination of the Coefficient of Linear Thermal Expansion of Rock Specimens by Means of Resistance Wire (SR-4) Strain Gauge Louis Moyd
Deposits of Heavy Minerals on the Brazilian Coast Joseph L. Gillson
Kaolin Production and Treatment in the South Paul M. Tyler
Some Properties of Pseudowavellite from Florida (Correction p. 702) W. L. Hill, W. H. Armiger, and S. D, Gooch
Effect of Waste Disposal of the Pebble Phosphate Rock Industry in Florida on Condition of Receiving Streams Randolph C. Specht
Sillimanite in the Southeast (correction page 789) Kefton H. Teague
Building Stone of the Crab Orchard District, Tennessee Benjamin Gildersleeve
Fluoride in Ground Water of Alabama Phillip E. La Moreaux
An Oxidation Method for Investigating the Petrographic Composition of Some Coals R. Q. Shotts
Petalite-A New Commercial Mineral J. D. Clark
Special Methods for the Beneficiation of Glass Sand Paul M. Tyler

Geology

TITLE AUTHOR
Radioactivity at the Caribou Silver Mine, Boulder County, Colorado G. Carman Ridland
Canadian Deposits of Uranium and Thorium W. F. James, A. H. Land, Richard Murphy, and S. N. Kesten
Tin Deposits of the Monserrat Mine, Bolivia R. Gibson and F. S. Turneaure
Aspects of Structure and Mineralization Used as Guides in the Development of the Picher Mining Field J. Lyden

Mineral Industry Education

TITLE AUTHOR
The Young Mining Engineer in the Coal Industry M. D. Cooper

Business Administration

TITLE AUTHOR
Organizing and Financing Cooperative Research Elmer R. Kaiser

Geophysics

TITLE AUTHOR
Radioactivity at the Caribou Silver Mine, Boulder County, Colorado G. Carman Ridland
Magnetic Fields Associated with Igneous Pipes in the Central Ozarks Charles R. Holmes

Technical Note

TITLE AUTHOR
The Influence of Certain Inorganic Salts on the Flotation of Lead Carbonate Maurice Rey, Paul Chataignon, and Victor Formanek
Discussion of Papers Published in Transactions Volume 184, 1949  
Discussion of Papers Published in Transactions Volume 187, 1950  

Index

TITLE AUTHOR
Index  

Extractive Metallurgy

TITLE AUTHOR
As many members of the Mining Branch are interested in the papers of the Extractive Metallurgy Division, the titles of the papers published for that Division in 1950 are listed below. These papers, and discussion, appear in Transactions (1950) 188, Metals Branch.
Fundamental and Practical Factors in Ammonia Leaching of Nickel and Cobalt Ores. With discussion. M. H. CARON
Separation of Nickel and Cobalt. With discussion. M. H. CARON
Reflections on the Electrolytic Cells Used in the Production of Aluminum. With discussion. BRUNO B. A. LUZZATTO
The Graphical Representation of Metallurgical Equilibria. With discussion. C. J. OSBORN
Conditioning Dwight-Lloyd Gases to Increase Bag Life. R. E. SHINKOSKEY
An Improved Automatic Smoke Sampler. J. J. DONOSO
Extractive Metallurgy of Aluminum. R. S. SHERWIN
Water Sealed Wind Boxes for Dwight and Lloyd Sintering Machine. E. McL. TITTMANN and E. A. HASE
Acid Conditioning of Metallurgical Smoke for Cottrell Precipitation. A. L. LABBE
The Calbeck Process for Refining Zinc Oxide. JOHN H. CALBECK, WILLIAM T. MAIDENS, and OSCAR J. HASSEL
Treatment of Electrolytic Copper Refinery Slimes. J. H. SCHLOEN and E. M. ELKIN
Modern Baghouse Practice for the Recovery of Metallurgical Fumes. A. L. LABBE and J. J. DONOSO
Thermodynamic Relationships in Chlorine Metallurgy. With discussion. HERBERT H. KELLOCC.
A Survey of the Thermodynamics of Copper Smelting. R. SCHUHMANN, JR.
Development of Mechanical Puncher at the McGill Smelter. LEONARD LARSON
The Electrical Resistivity of Titanium Slags. With discussion. JAMES L. WYATT
The Development of the Lead Blast Furnace at Port Pirie, South Australia. L. A. WHITE
Production of Malleable Zirconium on a Pilot-Plant Scale. W. J. KROLL, W. W. STEPHENS, and H. P. HOLMES