| RefNo | MS/257/5/83 |
| AltRefNo | Sa.1763 |
| Previous numbers | ES5/16/1763 |
| Level | Item |
| Title | Letter from John Welsh, Kew Observatory to Edward Sabine |
| Date | 10 March 1858 |
| Description | Regarding the preparation of instruments for Dr [Christophorus Henricus Diedericus] Buys Ballot, including Welsh’s suggestions regarding length of magnets. Reference to who should make the differential instruments. Welsh discusses the requirements for a fixed observatory, and the cost of a six inch theodolite. |
| Extent | 4p |
| Format | Manuscript |
| PhysicalDescription | Ink on paper |
| AccessStatus | Open |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA1680 | Welsh; John (1824 - 1859) | 1824 - 1859 |
| NA8279 | Sabine; Sir; Edward (1788 - 1883) | 1788 - 1883 |