| Year | 1906 |
| Date | 15-Feb |
| Volume | 14 |
| Issue | 251 |
| Page | 155 |
| Category | Educational |
| Part | |
| Title | "A Simple Calculating Machine" |
| Author | Arthur W.Brackett |
| Notes | Lecture under the auspices of the City of London College Science Society. Burroughs Patent Adding Machine, "Napier's Bones", slide rule |