| RefNo | EL/B1/11 | 
| Level | Item | 
| Title | Letter, from William Brouncker to Christiaan Huygens | 
| Date | 23 June 1673 | 
| Description | Part of an autograph letter concerning a book to be sent by Huygens copied for Henry Oldenburg, titled  'Part of my lettre to M Hugens of June 23 1673'. Note stated: 'Translation entered Letter book 6, 165' Verso side has the principle upon which Brouncker made his demonstration of the cycloid written by Oldenburg
 
 Subject: Mathematics
 | 
| Language | English | 
| Extent | 2p | 
| Format | Manuscript | 
| Digital images | View item on Science in the Making | 
| AccessStatus | Open | 
| RelatedMaterial | Transcribed in 'The correspondence of Henry Oldenburg', ed and trans by A Rupert Hall and Marie Boas Hall, vol 10, p 39. | 
| URLDescription | Also available on Early Modern Letters Online | 
| URL | http://emlo.bodleian.ox.ac.uk/profile/work/36c0b3e0-5fac-4d37-9efd-c3f087036b54 | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA3503 | Brouncker; William (c 1620 - 1684); 2nd Viscount Brouncker; mathematician | c 1620 - 1684 | 
| NA8001 | Oldenburg; Henry (c 1619 - 1677); scientific correspondent | c 1619 - 1677 | 
| NA8062 | Huygens; Christiaan (1629 -  1695); natural philosopher | 1629 -  1695 |