Rec | Mtg# | Year | Authors | Institution | Talk title |
---|---|---|---|---|---|
1 | 187 | 1907 | Ralph Walter Stone | USGS | The Pine Mountain fault |
2 | 255 | 1912 | Ralph Walter Stone | USGS | Classification of metalliferous mineral lands |
3 | 563 | 1938 | Ralph Walter Stone | Pennsylvania Geological Survey | Some problems in geology in Pennsylvania |