| Year | 1935 |
| Date | 09-May |
| Volume | 72 |
| Issue | 1,774 |
| Page | 445 |
| Category | Boiler |
| Part | |
| Title | A Model Electrode Steam Boiler |
| Author | S.C.Harling |
| Notes | Section, photo of complete, diagram of connections for system controlled by pressure of water supply, for thermostatically controlled system |