Includes several hundred stratigraphic columns showing coal measurements for sites across Indiana and correlation lines. Detached from: The coal deposits of Indiana : a supplemental report to the one issued in 1898 / George H. Ashley. In Indiana Department of Geology and Natural Resources thirty-third annual report, 1908. Indianapolis : Wm. B. Burford, 1909. Page 96.
Imprint: [Indianapolis] : [Indiana Department of Geology and Natural Resources], [1909]
Dimensions: 41 x 54 cm; Scale: Horizontal scale not given. Vertical scale approximately 1:12. 1 inch = 8 feet