Two hundred tables of elevation above tide-level of the railroad stations, summits and tunnels; canal locks and dams, river rifles &c., in and around Pennsylvania
By: by Charles Allen.
Series: Pennsylvania. Geological survey, 2d. Report of progress -- N; Report of progress (Geological Survey of Pennsylvania) -- N.
Publisher: Pub. by the Board of Commissioners for the Second geological survey
Published: 1878
Place of publication: Harrisburg
Language: eng
Number of pages: 279
Subjects: Pennsylvania -- Altitudes.
Notes: At head of title: Second geological survey of Pennsylvania: 1875-6-7. Report of progress N.