Stevenson, John J. (John James), 1841-1924. 24673 Report of progress in the Greene and Washington district of the bituminous coal-fields of western Pennsylvania, / by J.J. Stevenson. Illustrated with 3 sections and 2 county maps, showing the calculated local depths of the Pittsburgh and Waynesburg coal beds beneath the surface.

Stevenson, John J. (John James), 1841-1924. 24673

Report of progress in the Greene and Washington district of the bituminous coal-fields of western Pennsylvania, / by J.J. Stevenson. Illustrated with 3 sections and 2 county maps, showing the calculated local depths of the Pittsburgh and Waynesburg coal beds beneath the surface.

Harrisburg : Pub. by the Board of Commissioners for the Second Geological Survey, 1876.

At head of title: Second geological survey of Pennsylvania, 1875.

Geology -- Pennsylvania.

Coal -- Pennsylvania.

Philadelphia Area Center for History of Science
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