| Year | 1958 |
| Date | 29-May |
| Volume | 118 |
| Issue | 2,975 |
| Page | 683 |
| Category | Ultra Miniature Practice |
| Part | 2 |
| Title | Some problems of design |
| Author | A.A.Sherwood |
| Notes | Reducing components, heat flow problems, crankshafts for i.c. engines, accurate balancing, pipe joints, it has to work, workshop economics |