Browse TRAIL Inventories

Miners' safety and health almanac for 1919-

Sulphur dioxide method for determining copper minerals in partly oxidized ores

Rock Quarrying for Cement Manufacture

War Minerals Nitrogen Fixation and Sodium Cyanide

Melting Brass in a Rocking Electric Furnace

Dangerous and safe practices in bituminous coal mines

Labor saving at limestone quarries

War Minerals, Nitrogen Fixation and Sodium Cyanide

Miners' Safety and Health Almanac for 1920


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