| StorageSite | UCL Special Collections |
| Level | Item |
| Reference Number | GALTON/2/7/2/4/13 |
| Title | Edgeworth, Francis Ysidro |
| Date | Mar 1880 - Apr 1880 |
| Description | Letters to Galton on how he visualises numerals along a "number-curve" shaped like a hunting whip, and can also arrange the events of his life along this curve, whilst his sister sees them as on a perpendicular line. Encloses an example of his curve, and how it changes shape when his mind attends to particular figures, and of his sister's number-line. |
| Extent | 3 letters, 1 postcard, plus 2 enclosures |
| AccessStatus | Open |
| AccessConditions | The papers are available subject to the usual conditions of access to Archives and Manuscripts material, after the completion of a Reader's Undertaking. |