| Year | 2009 |
| Date | 08-Apr |
| Volume | 202 |
| Issue | 4,349 |
| Page | 431 |
| Category | Correction |
| Part | |
| Title | A tale of two traction engines |
| Author | Peter Southworth |
| Notes | Relates the tale of W.J.Hughes and the lawsuit over his Allchin traction engine design. Subtle alterations prove a case, recommended books by W.J.Hughes, Lesney |