Report of investigations. 4925. Anthracite mechanical-mining investigations, progress report 7: Longhole retreat mining of steeply pitching anthracite bed; by Andrew Allan, jr., and Russell S. Davies.
Publication Title:
Anthracite mechanical-mining investigations, progress report 7: Longhole retreat mining of steeply pitching anthracite bed; by Andrew Allan, jr., and Russell S. Davies.
Display Title:
Report of investigations. 4925. Anthracite mechanical-mining investigations, progress report 7: Longhole retreat mining of steeply pitching anthracite bed; by Andrew Allan, jr., and Russell S. Davies.
Series Title:
Report of investigations.
Corporate Agency Authors:
Mines Bureau and Interior Dept.
Sort Author:
Mines Bureau
Authors:
Allan, Andrew jr. and Davies, Russell S.
Date:
Nov. 1952
Publish Date ISO Format:
1952-11-01T00:00:00Z
Publication Start:
19521101
Publication End:
19521130
Corporate/Agency Author:
Mines Bureau
Publication month:
2
Publication year:
1952
SuDoc number:
I 28.23:(nos.)
Description:
[2]+10 p. 4 pl. 4°
Notes:
[Processed.]
Notes:
[Processed.] † Distribution Made by Issuing Office. Mines Bureau, Pittsburgh, Pa.
Availability:
† Distribution Made by Issuing Office. Mines Bureau, Pittsburgh, Pa.