Surface geology of south-west Pennsylvania and adjacent portions of West Virginia and Maryland.
- Creator Personal:
- Stevenson, John J. (John James), 1841-1924.
- Title:
- Surface geology of south-west Pennsylvania and adjacent portions of West Virginia and Maryland.
- Call Number:
- P456
- Date:
- 1879
- Description:
- Journal article tearout from: Proceedings [of the] American Philosophical Society, v.18:no.104 (1879:Sept.) Paper read "before the American Philosophical Society, August 15, 1879."
- Subject Topical:
- Geology--Maryland., Geology--Pennsylvania., Geology--West Virginia.