Structure of Herrin (no. 6) Coal Bed in Christian and Montgomery Counties and Adjacent Parts of Fayette, Macon, Sangamon, and Shelby Counties68 pages3 hours of readingTrack
Subsurface Geology of the Chester Series in Illinois: Subsurface Geology of the Iowa (lower Mississippian) Series in Illinois; Report of InvestigationTrack
Geology and Mineral Resources of the Marseilles, Ottawa, and Streator Quadrangles; Illinois State Geological Survey Bulletin No. 66396 pages14 hours of readingTrack
