| Year | 1906 |
| Date | 13-Dec |
| Volume | 15 |
| Issue | 294 |
| Page | 566 |
| Category | Electrical |
| Part | |
| Title | Some Accurate Electrical Measuring Instruments |
| Author | V.W.Delves-Broughton |
| Notes | A Reflecting Galvanometer, internal elevation, coil section, plan, celluloid cell, winding detail, compound magnetic needle with damping vane |