| Reference number | MS/257/5/62 |
| Alternative reference number | Sa.1742 |
| Previous numbers | ES5/16/1742 |
| Level | Item |
| Title | Letter from John Welsh, Kew Observatory to Edward Sabine |
| Date | 20 January 1857 |
| Description | Regarding the results for the induction coefficient of the Toronto magnet. Includes a table depicting the corrections and corrected ‘x’ values for each year from 1845 to 1852. Welsh has measured the magnet and includes its half-length. Welsh asks Sabine to send him the apparatus used by Jones to measure the inertia rings and the original values for the Toronto ring. |
| Extent | 3p |
| Format | Manuscript |
| Physical description | Ink on paper |
| Access status | Open |
Fellows associated with this archive
| Code | Name | Dates |
| NA1680 | Welsh; John (1824 - 1859) | 1824 - 1859 |
| NA8279 | Sabine; Sir; Edward (1788 - 1883) | 1788 - 1883 |