| Reference number | AP/19/22/4 |
| Level | Item |
| Title | Unpublished letter, regarding 'On the circulation of the blood in insects' from John Tyrrell to P M [Peter Mark] Roget |
| Date | 18 December 1834 |
| Description | Tyrrell writes to Roget with a correction to his initial paper on blood circulation in insects, noting revised terminology. |
| Extent | 2p |
| Format | Manuscript |
| Physical description | Ink on paper |
| Access status | Open |
Fellows associated with this archive
| Code | Name | Dates |
| NA6616 | Roget; Peter Mark (1779 - 1869); physician and philologist | 1779 - 1869 |