| Year | 1918 |
| Date | 27-Jun |
| Volume | 38 |
| Issue | 896 |
| Page | 380 |
| Category | Workshop |
| Part | |
| Title | Some Practical Hints on Hardening and Tempering |
| Author | H.H.Jones |
| Notes | Cracks and Fractures. Solutions for Hardening. The Heat Bath. General Hints. Tempering. 3. Hardening High-Speed Steel. Working High-Speed Steel. Hardening Processes. Annealing and Grinding. Final Hints |