| Reference number | MM/14/76 |
| Level | Item |
| Title | Draft memorandum from the Royal Society to the Board of Trade on iron ships and their compasses |
| Date | 19th century |
| Description | The memorandum discusses the issue of the deviation of compasses onboard ships made from iron and on possible solutions to the problem. |
| Extent | 16 sides |
| Format | Manuscript |
| Access status | Open |
| Related records in the catalogue | MC/7/215 |
| MC/7/260 |