| Year | 1914 |
| Date | 26-Mar |
| Volume | 30 |
| Issue | 674 |
| Page | 297 |
| Category | Electronic |
| Part | |
| Title | Hertzian Collisions |
| Author | V.W.D.-B. |
| Notes | Plan showing land & sea between two stations A & B showing that collisions are liable to occur "all over the shop", showing waves being reflected between upper conducting strata & the surface of earth & sea |