| Reference number | RBO/14/58 |
| Alternative reference number | RBO.14.247 |
| Level | Item |
| Title | 'A Method for determining the Longitude communicated in a Letter to Dr Rutty by W T Mansfield |
| Date | 1729 |
| Description | Figure in text
Read to the Royal Society on 5 June 1729 |
| Language | English |
| Extent | 4 sides |
| Format | Manuscript |
| Digital images | View item on Science in the Making |
| Access status | Open |