| Reference number | LBO/2/23 |
| Alternative reference number | LBO/2/55 |
| Level | File |
| Title | Copy letter from Henry Oldenburg to Renatus Franciscus Slusius |
| Date | 23October 1667 |
| Description | An answer to Monsier Slusius of his letter of October 6, 1667 [see page 51 of this volume] |
| Extent | 3p |
| Format | Manuscript |
| Access status | Open |
| Related material | LBO/2/21; |