| Year | 1951 |
| Date | 07-Jun |
| Volume | 104 |
| Issue | 2,611 |
| Page | 742 |
| Category | Novices' Corner |
| Part | |
| Title | Simple Methods of Case-hardening |
| Author | |
| Notes | The open hearth method, the molten bath method, heating the case-hardeing bath, quenching the parts, the closed box method of case-hardening |