| RefNo | HS/11/65 |
| Level | Item |
| Title | Letter, from Francis Charles Knowles to Sir John Herschel, dated at Belvedere House, Ryde |
| Creator | Francis Charles Knowles |
| Date | 9 October 1856 |
| Description | Autograph letter signed by sender. Thinks it may be a good idea to utilize aluminium to coat the speculum of reflecting telescopes. Is shortly to take command of iron works and furnaces and hopes to carry out experiments to produce barytic glass. |
| Language | English |
| Extent | 4pp |
| Format | Manuscript |
| Place origin | Belvedere House, Ryde |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |
| URLDescription | Also available on Epsilon |
| URL | https://epsilon.ac.uk/view/herschel/letters/Herschel11175
|
Fellows associated with this archive
| Code | PersonName | Dates |
| NA5893 | Knowles; Sir; Francis Charles (1802 - 1892) | 1802 - 1892 |
| NA8238 | Herschel; Sir; John Frederick William (1792 - 1871); astronomer | 1792 - 1871 |