| Title | Comment | Keywords |
|---|---|---|
| Economic Benefits of Structures | 21:25 - 22:28 (01:03) / 1.3 MB | "James Sadd", "geologic structure", "economic geology", oil, strata, permeability, impermeability, fold |
| First Commercial Oil Well | 22:28 - 22:46 (00:18) / 0.3 MB | "James Sadd", "Appalachian Mountains", "oil well", "geologic structure", "economic geology", oil, gas, strata, permeability, impermeable, fold |