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More by Harold Hayward Clark
Electrical Symbols for Mine Maps
5.0
star
Free
Electric Lights for Use about Oil and Gas Wells
Free
Permissible Electric Lamps for Miners: Volumes 75-99
Free
Safety Electric Switches for Mines
Free
The Factor of Safety in Mine Electrical Installations
Free
The Electrical Section of the Bureau of Mines: Its Purpose and Equipment
Free
Ignition of Gas by Standard Incandescent Lamps
Free
Portable Electric Mine Lamps
Free
Ignition of Gas by Miniature Electric Lamps with Tungsten Filaments
Free
Suggested Safety Rules for Installing and Using Electrical Equipment in Bituminous Coal Mines
Free
Electrical Accidents in Mines: Their Causes and Prevention
Free
The Action of Acid Mine Water on the Insulation of Electric Conductors: A Preliminary Report
Free
Shot Firing in Coal Mines by Electricity Controlled from Outside
4.0
star
Free
Coal-mine Accidents in the United States and Foreign Countries: Issues 66-72
Free
Notes on Mineral Wastes: Issues 47-52
Free
The Wet Thiogen Process for Recovering Sulphur from Sulphur Dioxide in Smelter Gases: A Critical Study, Issues 131-140
Free