National Geologic Map Database
General Information
- Title: Letter of transmission
- Author(s): Lesley, J.P.
- Publishing Organization: Pennsylvania Second Geological Survey (1874-1889)
- Series and Number: Report of Progress H5 [p. v-xxii]
- Larger Work: Platt, W.G., Report of progress in Armstrong County
- Publication Date: 1880
- Cross Section: None
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