Volume 94
Coal Division 1931 Containing Papers and Discussions Presented before the Division at Pittsburgh, September 11-13, 1930; Fairmont March 26-27, 1931 and New York, February 16-19, 1931
Title Page
Contents
Foreword
Institute Officers and Directors
Institute of Coal Division Officers and Committee

Ventilation

TITLE AUTHOR
Air Cooling to Prevent Falls of Roof Rock (With Discussion) J. H. Fletcher and S. M. Cassidy

Subsidence and Outbursts

TITLE AUTHOR
Subsidence and Ground Movement in a Limestone Mine and on the Surface Caused by Longwall Mining in a Coal Bed Below (With Discussion) R. Laird Auchmuty
Effect on Buildings of Ground Movement and Subsidence Caused by Longwall Mining Wallace Thorneycroft
Subsidence in the Sewickley Bed of Bituminous Coal Caused by Removing the Pittsburgh Bed in Monongalia County, West Virginia (With Discussion) S. D. Brady Jr.
Introductory Notes on Origin of Instantaneous Outbursts of Gas in Certain Coal Mines of Europe and Western Canada (With Discussion) George S. Rice
Instantaneous Outbursts of Carbon Dioxide in Coal Mines in Lower Silesia, Germany (With Discussion) P. A. C. Wilson

Steam Pollution

TITLE AUTHOR
General Review of U. S. Bureau of Mines Stream-pollution Investigation (With Discussion) R. R. Sayers, W. P. Yant and R. D. Leitch

Mining

TITLE AUTHOR
Roof of the Pittsburgh Coal Bed in Northern West Virginia (With Discussion) Lee M. Morris
Shaker-chute Mining, Northern Anthracite Field K. A. Lambert
Mechanical Mining Eugene McAuliffe
Selection of Mechanical Car-loading Equipment (With Discussion) C. C. Hagenbuch
Comparison of Accident Hazards in Hand and Mechanical Loading of Coal (With Discussion) Eugene McAuliffe
Stripping in the Anthracite Region H. H. Otto
Mining Coal by the Stripping Method with Particular Reference to the Operations of the Enos Coal Mining Co., Oakland City, Ind. (A. I. M. E. Preprint) Fred S. McConnell
Strip Coal Mining in the Southwest (See Mining and Metallurgy, March, 1931)  
Premature and Hangfire Explosions in Anthracite Mines (With Discussion) Charles W. Wagner
Economic Aspects of Coal Losses in Ohio, Pennsylvania and West Virginia (With Discussion) James D. Sisler
Operating Organization at Mines of Consolidation Coal Co. (With Discussion) A. R. Matthews
Measuring Mine Costs and Production N. A. Elmslie
Relation between Mine Performance and Mine Cars (With Discussion) D. L. McElroy
Safety in Mining (See Mining and Metallurgy, October, 1930) John T. Ryan

Cleaning

TITLE AUTHOR
Dry Cleaning of Coal in England (With Discussion) Kenelm C. Appleyard
Combination Wet and Dry Coal-cleaning Process (With Discussion) Ray W. Arms
Mechanical Preparation of Pocahontas Coals-Some Factors in the Problem (With Discussion) J. R. Campbell
Conditioning of Coal for Treatment by Pneumatic Cleaners (With Discussion) Thomas Fraser and Robert MacLachlan
Coal Preparation Problems in the Illinois Field (With Discussion) D. R. Mitchell
Operation of Rheolaveur Plant at Dorrance Colliery, Lehigh Valley Coal Co. (With Discussion) Edgar Schweitzer
Control of Chance Cone Operation (With Discussion) J. F. McLaughlin
Heat Drying of Washed Coal (With Discussion) S. M. Parmley
Dust Collection in Pneumatic Cleaning Plants Charles H. J. Patterson
Determination of Shapes of Particles and Their Influence on Treatment of Coal on Tables (With Discussion) H. F Yancy
Control of the Quality of Shipped Coal R. G. Baughman

Evaluation

TITLE AUTHOR
Evaluation of Coal for Blast-furnace Coke (With Discussion) J. R. Campbell

Economics

TITLE AUTHOR
Economic Utilization of Natural Gas (With Discussion) Ralph E. Davis, H. K. Ihrig, D. J. Sabin and L. F. Terry
Solving Distribution Problems by Merger (See Mining and Metallurgy, November, 1930) Harold Vinton Coes

INDEX

TITLE AUTHOR
Index