| Year | 1911 |
| Date | 31-Aug |
| Volume | 25 |
| Issue | 540 |
| Page | 209 |
| Category | Automotive |
| Part | |
| Title | Motor Cycle Notes |
| Author | "Phoenix" |
| Notes | The Theory of the Exhaust Whistle. How to Remedy the Trouble. The Design of Exhaust Valve. Is the Trailer Practicable. Replies in Brief |