Search U.S. government technical reports digitized or harvested by TRAIL.
Some studies on emergency mine communications
Acid mine water in the anthracite region of Pennsylvania
Applicability of Radio to Emergency Mine Communications: Progress Report, September 1946 to November 1947
Acid-Mine-Drainage Problems: Anthracite Region of Pennsylvania
Corrosive and Erosive Effects of Acid Mine Waters on Metals and Alloys for Mine Pumping Equipment and Drainage Facilities: Anthracite Region of Pennsylvania