Search U.S. government technical reports digitized or harvested by TRAIL.
Permissible explosives, mining equipment, and apparatus, approved prior to March 15, 1922
Progress of investigations on liquid-oxygen explosives
Record of the Pittsburgh testing station standard dynamite
Blasting to lessen bowlders in hard-ore stopes
Gases from Blasting in Tunnels and Metal-Mine Drifts
Prevention of accidents with explosives in the tri-state zinc and lead ore producing district