Report of the Geological Exploration of the Fortieth Parallel; Volume 7.
Washington, D.C. Government Printing Office, 1880. Cloth. 201 pp + 34 plates. 4to. Cloth. Boards are worn, scuffed, soiled, rear board is scratched. Bumping to spine ends and corners with board exposure to corners. Damp staining to board edges, textblock and edges/corners of pages. Large chips to 1st two pp.....