Volume 130
Coal Division 1938
Papers and Discussions Presented before the Division at Meetings held at Pittsburgh, October 21-22, 1936 and October 27-28, 1937; New York, February 15-19, 1937 and February 14-18, 1938

Title Page

Foreword

Contents

Institute Officers And Directors

Coal Division Officers And Committees

PAPERS:

GENERAL

TITLE	AUTHOR
The Pittsburgh Coal Bed-Its Early History and Development	Howard N. Eavenson
Production and Reserves of the Pittsburgh Coal Bed (T. P. 740, with discussion)	George H. Ashley
Vanishing Interest of the Student Engineer in Coal Mining (Report of Committee to Coal Division.) T. P. 949, with discussion)	Newell G. Alford

BENEFICATION AND UTILIZATION

TITLE	AUTHOR
Economics of Preparing Coal for Steam Generation (T. P. 847, with discussion)	Henry F. Hebley
Segregation in the Handling of Coal (T .P. 846, with discussion)	David R. Mitchell
Fundamentals in Dustproofing Coal (T. P. 866, with discussion)	H. R. Fife and W, Edeburn
Mechanics of Launder Separations (T. P. 944, with discussion)	A. C. Richardson
Launder Washing of Coarse Coal (T. P. 947, with discussion)	J. T. Crawford, C. P. Proctor and M. J. Williams
Cleaning Bituminous Coal while Cutting (T. P. 739, with discussion)	William Reynolds, Jr.

SAMPLING AND ANALYSIS

TITLE	AUTHOR
Statistical Interpretation of Laboratory Coal Tests and Sampling Methods (T. P. 849, with discussion)	G. B. Gould
Need for a Standard Method for Determining Surface Moisture in Coal (T. P. 935, with discussion)	T. W. Guy
Expression and Interpretation of the Size Composition of Coal	M. R. Geer and H. F. Yancey

UNDERGROUND MINING

TITLE	AUTHOR
Influence of Rate of Advance and of Time Factor in Support of Active Workings in Bituminous Coal Mines (T. P. 933, with discussion)	L. E. Young
Bulkheads for Coal Mines (T .P. 789, with discussion)	John A. Garcia and Samuel M. Cassidy
Mechanization in the Roslyn Coal Field (With Discussion)	George Watkin Evans
Effects of Immediate Roof Thickness in Longwall Mining as Determined by Barodynamic Experiments (T. P. 946, with discussion)	Phillip B. Bucky and R. S. Taborelli
Pillar Deformation in a Bituminous Coal Mine (T. P. 770, with discussion)	Charles T. Holland
Some Observations on Mine-roof Action (T. P. 934, with discussion)	H. Landsberg

COMBUSTION AND RESEARCH

TITLE	AUTHOR
Chemical Treatment of Coal and Coke (T. P. 848, with discussion)	P. Nicholls
Combustion of Bituminous Coal on the Small Underfeed Stoker (T. P. 750, with discussion)	Ralph A. Sherman and E. R. Kaiser
Some Factors Affecting Combustion in Fuel Beds (T.P. 771, with discussion)	Martin A. Mayers
Oxidation of Pyritic Sulphur in Coal Mines (T .P. 769, with discussion)	Stephen P. Burke and Richard Downs
Angle of Polarization as an Index of Coal Rank (T. P. 791, with discussion)	L. C. McCabe and T. T. Quirke

SAFETY

TITLE	AUTHOR
Inspection of Safety of the Island Creek Properties (T. P. 855, with discussion)	A. J. Bartlett
Fifteen Years Of Safety Work In Bituminous Coal Mines (T. P. 958, with discussion	Eugene McAuliffe

INDEX

TITLE	AUTHOR
Index

PLATES

TITLE	AUTHOR
Plates