| Reference number | LBO/3/56 |
| Alternative reference number | LBO/3/108 |
| Level | File |
| Title | Copy of a letter from Francis Willughby, Middleton, to Henry Oldenburg |
| Date | 21 June 1669 |
| Description | Concerning the circulation of sap in trees, and also about the bounds of all the motion in the world |
| Extent | 2p |
| Format | Manuscript |
| Access status | Open |