| Year | 1906 |
| Date | 25-Jan |
| Volume | 14 |
| Issue | 248 |
| Page | 81 |
| Category | General |
| Part | |
| Title | Traction Notes on Road and Rail |
| Author | Chas. S.Lake |
| Notes | Simple v. Compound Engines. A "Yerkes" Echo. Rail Motors on the L.B. & S.C.R. Electric Locomotives (Metropolitan Railway). Electric Locomotives (Paris and Orleans Railway) |