| RefNo | EL/W3/9 | 
| Level | Item | 
| Title | Letter, from Thomas Willis to Henry Oldenburg | 
| Creator | Willis; Thomas (1621-1675); physician; natural philosopher; Sedleian Professor of Natural Philosophy at Oxford  | 
| Date | 1667 | 
| Description | Analysis of a powder which was sent to him Read to the Royal Society on 12 December 1667 | 
| Language | English | 
| Extent | 1p | 
| Format | Manuscript | 
| Digital images | View item on Science in the Making | 
| AccessStatus | Open | 
| RelatedMaterial | Transcription in 'The correspondence of Henry Oldenburg', ed and trans by A Rupert Hall & Marie Boas Hall, vol 4, p 33 | 
| URLDescription | Also available on Early Modern Letters Online | 
| URL | http://emlo.bodleian.ox.ac.uk/profile/work/443c4f6f-b1ca-45f0-9590-8b6e90375803 | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA8001 | Oldenburg; Henry (c 1619 - 1677); scientific correspondent | c 1619 - 1677 | 
| NA8032 | Willis; Thomas (1621 - 1675); physician and natural philosopher | 1621 - 1675 |