IV.—First Report of Progress in the Anthracite Coal Region. The Geology of the Panther Creek Basin, or Eastern End of the Southern Field. By Chas. A. Ashburner. With an Atlas of 13 sheets of Maps and Sections, 6 page Plates, and 2 folded Plates. 8vo. pp. 407. (Harrisburg, 1883.) - G. J. H., (1884)