| Year | 1932 |
| Date | 29-Dec |
| Volume | 67 |
| Issue | 1,651 |
| Page | 611 |
| Category | Road Locomotive |
| Part | |
| Title | Modelling Traction Engines. Continuing the Notes on the Development of these Interesting Machines |
| Author | Henry Greenly |
| Notes | Aveling's patent countershaft gear change, Greig's curved guides, Honsby's sliding bearing, Aveling and Porter's valve gearing for twin high pressure cylinders, Mann's light spring-borne traction engine, typical American, novel form of valve gear |