| Reference number | L&P/3/164 |
| Level | Item |
| Title | Letter, 'Of the gravity of the air' from Silvester O'Halloran to Thomas Birch |
| Date | 4 April 1756 |
| Description | Subject: Physics
Read 13 May 1756 |
| Extent | 4p |
| Format | Manuscript |
| Physical description | Ink on paper |
| Digital images | View item on Science in the Making |
| Access status | Open |
Fellows associated with this archive
| Code | Name | Dates |
| NA8129 | Birch; Thomas (1705 - 1766) | 1705 - 1766 |