| Year | 1914 |
| Date | 23-Jul |
| Volume | 31 |
| Issue | 691 |
| Page | 77 |
| Category | Electronic |
| Part | 2 |
| Title | Wimshursts and Wireless |
| Author | V.E.Johnson |
| Notes | Leyden jar experiments, the spark gaps, Wimshurst with mica discs, mica condensers & lamp-glass Leyden jars, in and out of tune control, some experiments with mica, induction coils, two very simple inductance coils for Wimshurst work |