| RefNo | AP/16/25 |
| Previous numbers | AP.16.25 |
| Level | Item |
| Title | Unpublished letters, regarding the north magnetic pole from John Macdonald to Davies Gilbert |
| Date | 19 January 1831-5 February 1831 |
| Description | Correspondence regarding Macdonald's research into the depth of the north magnetic pole. Includes two letters from Macdonald to Gilbert, dated 19 January 1831 (featuring a copy of a letter from Macdonald to James R Graham Bart), and 5 February 1831. Letter dated 5 February 1831 includes one diagram regarding an experimental method for finding the depth of the north magnetic pole.
Subject: Magnetism / Trigonometry |
| Extent | 16p |
| Format | Manuscript |
| PhysicalDescription | Ink on paper |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA3036 | Macdonald; John (1759 - 1831) | 1759 - 1831 |
| NA8707 | Gilbert; Davies (1767-1839) | 1767-1839 |