Flood-Prevention Projects at Pennsylvania Anthracite Mines: Progress Report for 1945

Author:	Ash, S. H.
Additional Authors:	Eaton, W. L., Romischer, W. M., Cassap, W. E., Westfield, James, Podgorski, E. J.
Year:	1947
Document Type:	N/A
SUDOC:	I 28.23:4109
Series:	United States Bureau of Mines Reports
Report Number:	R. I. 4109
Subjects:	Anthracite coal -- Pennsylvania.
	Mine water.
	Flood control.
	Barrier pillars.
	Coal mines and mining -- Pennsylvania.
Link:	http://digital.library.unt.edu/ark:/67531/metadc38477/