Third report of progress in the laboratory of the survey at Harrisburg
By: By Andrew S. McCreath. With 2 indexes and map.
Series: Pennsylvania. Geological Survey, 2d. [Report of progress.] -- M3; Report of progress (Geological Survey of Pennsylvania) -- M3.
Publisher: Pub. by the Board of Commissioners for the Second Geological Survey
Published: 1881
Place of publication: Harrisburg
Language: eng
Number of pages: 126
Subjects: Geology, Economic -- Chemical analysis.
Notes: At head of title: Second geological survey of Pennsylvania: 1879-1880. M3