| Rec | Mtg# | Year | Authors | Institution | Talk title |
|---|---|---|---|---|---|
| 1 | 882 | 1966 | Jack B. Epstein | USGS | Origin of wind and water gaps in eastern Pennsylvania |
| 2 | 967 | 1973 | Jack B. Epstein | USGS | Take a look at my cleavage—Rated X (Everything you always wanted to know about cleavage but were afraid to ask) |
| 3 | 1160 | 1987 | Jack B. Epstein; Peter T. Lyttle |
USGS | Structure and sedimentation of the Pavlidides of the north central Appalachians |