| Year | 2008 |
| Date | 09-May |
| Volume | 200 |
| Issue | 4,325 |
| Page | 578 |
| Category | General |
| Part | |
| Title | Letters to a Grandson |
| Author | M.J.H. Ellis |
| Notes | Describes the historical development of tool steels. Benjamin Huntsman, Robert Mushet, the Manchester experiment, American developments |