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Relative pressure changes in coal pillars during extraction : a progress report / by Ernest A. Curth.

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Bibliographic Details
Main Author:	Curth, Ernest A. (Author)
Format:	Government Document Book
Language:	English
Published:	[Washington, D.C.] : U.S. Department of the Interior, Bureau of Mines, [1967]
Series:	Report of investigations (United States. Bureau of Mines) ; 6980.
Subjects:	Mining engineering.

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Holdings details from PASCAL Offsite
Call Number:	I 28.23:6976,6978-6995,6997-6998,7000
I 28.23:6976,6978-6995,6997-6998,7000	Available Place a Hold Contents The following works are all found in the book indicated by the call number above. Preparation characteristics of Pennsylvania anthracite from the Bottom Red Ash Bed, n... Steady-state laminar flow boundary conditions for a stainless steel coiled-capillary... Estimation of low-temperature carbonization product yields : Utah coalfields / by Man... The hafnium-carbon phase diagram / by D.K. Deardorff, M.I. Copeland, and R.P. Adams. Reservoir study of the William Kaufman Lease Clover-Rush Run Oilfield, Roane County,... A rapid colorimetric method for field determination of nitrogen dioxide in fumes from... Spectrochemical analysis of coal ash / by J.B. Zink, W.D. Washington, and M.J. Peters... Liberation and concentration of phosphate minerals by attrition grinding and sizing /... Mass spectrometric analyses of coal-tar distillates and residues / by J.L. Shultz, R.... Relative pressure changes in coal pillars during extraction : a progress report / by... Projectile impact initiation of condensed explosives / by Milton L. Weiss and Elton L... Laboratory and pilot plant development of flotation procedures for fine-grained hemat... Reaction of tungsten-cobalt alloys with oxygen at 1,000° and 1,100° K / by Robert M.... Continuous flotation of fluorspar from a calcareous Illinois ore / by W.H. Eddy, Jame... Lake Superior iron resources : reexamination of nonmagnetic taconite occurrences in t... Hydrogen cyanide from the reaction of coal with ammonia / by Glenn E. Johnson [and ot... Purification of tungsten hexachloride / by F.A. Skirvin, T.T. Campbell, and F.E. Bloc... Study of columbium-base alloys / by Renpei Yoda, H.R. Babitzke, and H. Kato. Mine water research : neutralization / by Maurice Deul and E.A. Mihok. Stress ellipsoid determination in a rock-burst-prone area at a 4,000-foot depth, Gale... Correction for nonuniformity of the bore of a capillary tube viscosimeter / by John E...