| Year | 1955 |
| Date | 16-Jun |
| Volume | 112 |
| Issue | 2,821 |
| Page | 666 |
| Category | Talking about steam- |
| Part | 30 |
| Title | The Evolution of the Portable Engine |
| Author | W.J.Hughes |
| Notes | A Clayton & Shuttleworth of 1851, removable firebox, Ransome's of 1858, Ruston Proctor of 1895, straw-burning, Ransomes Sims & Head, Turner's engine, Hartnell governor as used by E.R. & F.Turner, expansion gears, Robey's automatic expansion gear |