C
Clarence Hall
7 works on record
Works

Investigation of detonators and electric detonators
Heavenly Pearls
Heavenly Pearls
The selection of explosives used in engineering and mining operations
The selection of explosives used in engineering and mining operations
Coal-mine accidents
Coal-mine accidents
Permissible explosives tested prior to January 1, 1911 and precautions to be taken in their use
Permissible explosives tested prior to January 1, 1911 and precautions to be taken in their use
Investigations of fuse and miners' squibs
Investigations of fuse and miners' squibs
Magazines and thaw houses for explosives
Magazines and thaw houses for explosives