| Year | 1925 |
| Date | 11-Jun |
| Volume | 52 |
| Issue | 1,259 |
| Page | 660 |
| Category | Internal Combustion |
| Part | |
| Title | The Effect of Back Pressure on an Internal Combustion Engine |
| Author | A.H.Stuart |
| Notes | Showing types of vibration in an open pipe, showing loss of power resulting from back pressure |