| Reference number | LBO/1/64 |
| Alternative reference number | LBO/1/175 |
| Level | File |
| Title | Copy extract of a letter of Christian Huygens, Haye, to Robert Moray |
| Date | 18 July 1664 |
| Description | Concerning the 'compression of the Air and the falling of heavy bodys' |
| Language | French |
| Extent | 2p |
| Access status | Open |