| Rec | Mtg# | Year | Authors | Institution | Talk title |
|---|---|---|---|---|---|
| 1 | 110 | 1901 | Robert Hollister Chapman† | USGS | Production of the B. & M. plant at Great Falls, Montana |
| 2 | 124 | 1902 | Robert Hollister Chapman† | USGS | Stratification in mine dumps |
| 3 | 202 | 1908 | Robert Hollister Chapman† | USGS | Preliminary notes on recent Earth movements at Butte Montana as shown by precise levels of the U. S. Geological Survey |