| Year | 1938 |
| Date | 22-Dec |
| Volume | 79 |
| Issue | 1,963 |
| Page | 600 |
| Category | Educational |
| Part | |
| Title | First Steps in Model Engineering. Workshop Advice, Experience and Philosophy for Readers of all Ages |
| Author | "Inchometer" |
| Notes | Models and what to make, projectile throwing machines, names of the machines, projectiles and range, the catapult, effect of the sling, the balista (sketches by H.O.Clarke), from other correspondents |