| Year | 1924 |
| Date | 04-Sep |
| Volume | 51 |
| Issue | 1,219 |
| Page | 258 |
| Category | Electrical |
| Part | |
| Title | Simple Points on Electrical Testing and Electric Testing Instruments |
| Author | G.Gentry |
| Notes | Bridge and Bridge Testing. Wheatstone bridge, demonstration slide-wire bridge by Newton, standard pattern P.O. bridge by Muirhead & Co., low-resistance P.O. bridge by Elliott, use of shunt, moving coil voltmeter |