| RefNo | EL/O1/49 | 
| Level | Item | 
| Title | Letter, from Henry Oldenburg to Renatus Franciscus Slusius, dated at London | 
| Creator | Oldenburg; Henry (1619-1677); German natural philosopher in England; scientific correspondent | 
| Date | 25 November 1667 | 
| Description | Enquirying whether Slusius is revising his 'Mesolabe' into the symbolic method; asking him to contribute on the study of  natural history and to the advancement of mathematics and mechanics; informs him that a blood transfusion between animals has been successful, with details of the blood transfusion of a man | 
| Language | Latin | 
| Extent | 3p | 
| Format | Manuscript | 
| Place origin | London, England | 
| Origin coordinates | 51.50853, -0.12574 | 
| Digital images | View item on Science in the Making | 
| AccessStatus | Open | 
| RelatedMaterial | Transcribed and translated in 'The correspondence of Henry Oldenburg', ed and trans by A Rupert Hall & Marie Boas Hall, vol 3, p 615 | 
| URLDescription | Also available on Early Modern Letters Online | 
| URL | http://emlo.bodleian.ox.ac.uk/profile/work/2cbd4b08-acec-40f5-98f9-9d8a9a405f31 | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA5659 | Slusius; Renatus Franciscus (1622 - 1685); mathematician and clergyman | 1622 - 1685 | 
| NA8001 | Oldenburg; Henry (c 1619 - 1677); scientific correspondent | c 1619 - 1677 |