| Year | 1934 |
| Date | 08-Mar |
| Volume | 70 |
| Issue | 1,713 |
| Page | 223 |
| Category | General |
| Part | |
| Title | The Evolution of Invention |
| Author | H.W.Dickinson |
| Notes | Abstracted from a Paper read by Mr. H.W.Dickinson, before the Institution of Mechanical Engineers. The rationale of invention, aids to invention |