Volume 168
Coal Division 1946
Papers and Discussions Presented before the Division at Meetings held at New York February 20-24, 1944; Charleston, October 30-31, 1944; Pennsylvania Anthracite Section, May 18, 1945; Chicago, February 25-28, 1946; and Papers Listed for the New York Meeting February 19-22, 1945, which was canceled
Title Page
Foreword by Henry F. Hebley
Contents
A.I.M.E. Officers and Directors
Coal Division Officers and Committees

PAPERS:

Mining

TITLE AUTHOR
Wasting a Valuable National Resource (Bituminous Coal) (T. P. 1885, Coal Tech., May 1946, with discussion) Howard N. Eavenson
Research on Strata Control in Great Britain (T. P. 2062, Coal Tech., Nov. 1946, with discussion) D. W. Philips
Developing a Mining System for Mechanized Loading in the Pittsburgh Seam (T. P. 1886) Samuel M. Cassidy and George M. Rigg
The Consolidation and Modernization of the Warwick Coal Properties of the Duquesne Light Company (T. P. 1887) J. A. Younkins and J. A. Brooke
A New Method for Determining Hazardous Roof Conditions (T. P. 2088, Coal Tech., Nov. 1946, with discussion) C. G. Brennecke and R. T. Gallagher
Attainment of Greater Safety in Coal-mine Mechanization (T. P. 1963, Coal Tech., Feb. 1946) D. C. Jones

Ventilation

TITLE AUTHOR
Surveys of Underground Mine Pressure. Report of Ventilation Committee, Coal Division (T. P. 1827, with discussion) Raymond Mancha, Chairman
Determination of Most Economical Airshaft Size A. (T. P. 1983, Coal Tech., May 1946, with discussion) Raymond Mancha

Drainage

TITLE AUTHOR
Mine-drainage Practice in the Anthracite Region of Pennsylvania (T. P. 1907) Edward Griffith
Arrangements for Handling Mine Water in the Scranton-Olyphant Section of the Northern Anthracite Field (T. P. 1826) Walter S. Lutz and J. T. Griffith

Maintenance

TITLE AUTHOR
Maintenance of Hydraulic Systems as Applied to Mining Machinery. (T. P. 2073, Coal Tech., Aug. 1946, with discussion) Fred J. Wright
Maintenance of Coal-mining Equipment. Report of Maintenance Committee, Coal Division (T. P. 2117, Coal Tech., Nov. 1946, with discussion) A. Lee Barrett, Chairman
Underflux Welding of Mine-locomotive Wheels (T. P. 2111, Coal Tech., Nov. 1946, with discussion) C. D. Ramsden
Use of Special Equipment and Materials to Reduce Maintenance Costs in Preparation of Anthracite (Contrib. 137) John S. Johnson

PREPARATION

TITLE AUTHOR
Thickening and Settling of Breaker Wash-water Solids (T. P. 1957, Coal Tech., Feb. 1946) W. Julian Parton
Disposal of Solids in Breaker Waste Water by Impounding in Surface Basins (T.P. 1959, Coal Tech., Feb. 1946) W. C. Muehlhof and L. D. Lamont
Coal-cleaning Performance-Comparison of Pneumatic Jig, Pneumatic Table and Baum- type Jig (T. P. 1888) H. F. Yancey and M. K. Geer
Problems in a Coal-preparation Plant with Mechanical Loading (T. P. 1958, Coal Tech., Feb. 1946, with discussion) E. C. Carris
Blending Coals Reflects Greater Uniformity of Product (Contrib. 139, with discussion) R. F. Stilwell
Some Phases in the Development of Coal-beneficiation Methods in Alabama (T. P. 1882, Mining Tech., July 1945) W. M. Mobley
Hand Preparation of Coal in Southern Brazil (T. P. 1884, Coal Tech., Feb. 1946) Thomas Fraser and Alvaro Abreu
Coal Preparation in Germany and the Netherlands (T.P. 2112, Coal Tech., Nov. 1946) H. F. Yancey and Thomas Fraser

Utilization

TITLE AUTHOR
Coal Facts, Coal Characteristics and Imagineering with Underfeed Stoker Fuel Beds (Contrib. 138, with discussion) L. A. Shipman
Coal as a Fuel for the Gas Turbine (T. P. 2086, Coal Tech., Aug. 1946) John I. Yellott
Coal and the Carbon-chemicals Market (T. P. 2063, Coal Tech., Aug. 1946, with discussion) Corliss R. Kinney
German Developments in the Production of Synthetic Liquid Fuels. (T. P. 2096, Coal Tech., Aug. 1946) Alfred R. Powell
Oxygen Gasification Processes in Germany (T. P. 2116, Coal Tech., Nov. 1946, with discussion) L. L. Newman

INDEX

TITLE AUTHOR
Index