Books by Harold Hayward Clark

Cover of Electric Lights for Use about Oil and Gas Wells

Electric Lights for Use about Oil and Gas Wells

by Harold Hayward Clark

1914
Cover of Coal-mine Accidents in the United States and Foreign Countries

Coal-mine Accidents in the United States and Foreign Countries

by Clarence Hall, Dorsey Alfred Lyon, Harold Hayward Clark, Nelson Horatio Darton, Richard Bishop Moore, Karl Ludwig Kithil, Ralph W. Crocker, Robert Mayro Keeney, Spencer Pritchard Howell

1913
Cover of The Factor of Safety in Mine Electrical Installations

The Factor of Safety in Mine Electrical Installations

by Harold Hayward Clark

1912
Cover of The Electrical Section of the Bureau of Mines

The Electrical Section of the Bureau of Mines

by Harold Hayward Clark

1911
Cover of Shot Firing in Coal Mines by Electricity Controlled from Outside

Shot Firing in Coal Mines by Electricity Controlled from Outside

by Harold Hayward Clark, N. V. Breth, Charles M. Means

1915

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