| Year | 1918 |
| Date | 23-May |
| Volume | 38 |
| Issue | 891 |
| Page | 303 |
| Category | Electrical |
| Part | |
| Title | Hot Wire Ammeters and Voltmeters |
| Author | Albert V.Ballhatchet |
| Notes | The complete hot-wire instrument, the principle, the single wire type of instrument, experimental shunt, simple resistance, general arrangement of hot-wire instrument, view of instrument with cover removed, details of fittings |