About “Geological Survey of Pennsylvania: 1874-75.”
Geological Survey of Pennsylvania: 1874-75. is a 1878 book by John H. Dewees, C. A. Ashburner. It is part of the series Second Geological Survey of Pennsylvania..
Book details
- First published
- 1878
Geological Survey of Pennsylvania: 1874-75. is a 1878 book by John H. Dewees, C. A. Ashburner. It is part of the series Second Geological Survey of Pennsylvania..