| Reference number | HS/23/184 |
| Level | Item |
| Title | Copy letter, from Sir John Herschel to Francis Charles Knowles, dated at Collingwood |
| Creator | Herschel; Sir; John Frederick William (1792 - 1871); astronomer and mathematician |
| Recipient | Francis Charles Knowles |
| Date | 6 December 1856 |
| Description | Copy of a letter, copied as part of the correspondence project led by Colonel John Herschel FRS following the death of his father. Would be inclined to try a combination of cryolite and silex to obtain a glass. Comments on his process for decomposing alumina by cyanide of sodium. Sorry to see that Francis Charles Knowles uses the current forms of chemical notation. |
| Language | English |
| Extent | 4pp |
| Format | Manuscript |
| Place origin | Collingwood, Hawkhurst, Kent |
| Origin coordinates | 51.035306, 0.513556 |
| Digital images | View item on Science in the Making |
| Access status | Open |
| Related material | Copy: HS/11/67 |
| Related records in the catalogue | HS/11/67 |
| URL description | Also available on Epsilon |
| URL | https://epsilon.ac.uk/view/herschel/letters/Herschel11177
|
Fellows associated with this archive
| Code | Name | Dates |
| NA8238 | Herschel; Sir; John Frederick William (1792 - 1871); mathematician and astronomer | 1792 - 1871 |
| NA5893 | Knowles; Sir; Francis Charles (1802 - 1892) | 1802 - 1892 |