Coal
By: geology by J.A. Bownocker ; chemistry by N.W. Lord and E.E. Somermeier
Contributors: Lord, Nathaniel Wright, 1854-1911; Somermeier, E. E. (Edward Elsworth), 1874-; Geological Survey of Ohio
Series: Bulletin -- no. 9; Bulletin (Ohio. Division of Geological Survey) -- 9.
Publisher: Geological Survey of Ohio
Published: 1908
Place of publication: Columbus, Ohio
Language: eng
Number of pages: 342
Subjects: Coal
Notes: Maps in pocket.

Includes index.
Table of contents: title: pt. 1. Coals of the Monongahela formation or upper productive coal measures; title: pt. 2. Chemical analyses and calorific tests of the Clarion, lower Kittanning, middle Kittanning and upper Freeport coals.