| Year | 1915 |
| Date | 18-Mar |
| Volume | 32 |
| Issue | 725 |
| Page | 224 |
| Category | Electronic |
| Part | |
| Title | Conditions Affecting the Variations in Strength of Wireless Signals |
| Author | Professor E.W.Marchant |
| Notes | Paper read before the Institution of Electrical Engineers. Introduction, previous work, Paris sunset tests, methods of observation, receiver circuits, measurement of current in the crystal circuit, signals from Brussels showing "atmospherics", from Paris (low-frequency spark), from Clifden showing bad "atmospherics" |