| Year | 1925 |
| Date | 02-Jul |
| Volume | 53 |
| Issue | 1,262 |
| Page | 14 |
| Category | Small Power Plant |
| Part | |
| Title | The Design and Construction of Small Petrol Engines |
| Author | E.W.Brennand |
| Notes | Valves and valve gear, grain of valve when turned from bar and when stamped, arrangement of valve gear of a side by side valve engine, valve timing diagrams |