| Rec | Mtg# | Year | Authors | Institution | Talk title |
|---|---|---|---|---|---|
| 1 | 8 | 1893 | William Francis Hillebrand† | USGS | The widespread occurrence of barium and strontium in silicate rocks. Also, a plea for greater completeness in chemical rock analysis |
| 2 | 80 | 1898 | William Francis Hillebrand† | USGS | Distribution and quantitative occurrence of vanadium and molybdenum in rocks of the United States |