| Year | 1904 |
| Date | 17-Nov |
| Volume | 11 |
| Issue | 186 |
| Page | 463 |
| Category | Electronic |
| Part | |
| Title | Electro-Photographs of Experiments with Tesla High Frequency Discharges |
| Author | J.Pike |
| Notes | Discharge between two vertical rods, current reversed, negative & positve discharges |