| Year | 1916 |
| Date | 25-May |
| Volume | 34 |
| Issue | 787 |
| Page | 358 |
| Category | Workshop |
| Part | 12 |
| Title | How Machine Tools Work |
| Author | Fred Horner |
| Notes | Drilling operations, standard types of jig bushings, bushings, jig for holes in two flanges, simple type of flange jig, simple types of jigs, jig for bent lever, jig for connecting rod |