Bulletin, Issues 12-14
The Coal Resources of the Clintwood and Bucu Quadrangles, Virginia
The Stratigraphy of the Pennsylvania Series in Missouri
The stratigraphy of the Pennsylvanian series in Missouri, by Henry Hinds and F.C. Greene, with a chapter on invertebrate paleontology, by G.H. Girty. Surveyed in co-operation with the U.S. Geological Survey