Electrical Symbols for Mine Maps

Electric Lights for Use about Oil and Gas Wells

Permissible Explosion-proof Electric Motors for Mines: Conditions and Requirements for Test and Approval

Safety Electric Switches for Mines

Ignition of Gas by Miniature Electric Lamps with Tungsten Filaments

Ignition of Gas by Standard Incandescent Lamps

Permissible Electric Lamps for Miners: Volumes 75-99

Shot Firing in Coal Mines by Electricity Controlled from Outside

The Wet Thiogen Process for Recovering Sulphur from Sulphur Dioxide in Smelter Gases: A Critical Study, Issues 131-140