| RefNo | HS/14/92 |
| Level | Item |
| Title | Letter, from Charles Pritchard to Sir John Herschel, dated at Freshwater |
| Creator | Charles Pritchard |
| Recipient | John Frederick William Herschel |
| Date | 9 November 1864 |
| Description | Autograph letter signed by sender. Compares W. L. Newman's and Charles Pritchard's calculations of optical coefficients to those in John Frederick William Herschel's work. Sends John Frederick William Herschel formulae and tables for calculating telescopic lens thickness and shape in relation to the dimensions of the telescope. Wishes John Frederick William Herschel luck on Iliad. |
| Language | English |
| Extent | 9pp |
| Format | Manuscript |
| Place origin | Freshwater, Isle of Wight |
| Origin coordinates | 50.682566, -1.524884 |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |
| URLDescription | Also available on Epsilon |
| URL | https://epsilon.ac.uk/view/herschel/letters/Herschel4538
|
Fellows associated with this archive
| Code | PersonName | Dates |
| NA5459 | Pritchard; Charles (1808 - 1893) | 1808 - 1893 |
| NA8238 | Herschel; Sir; John Frederick William (1792 - 1871); mathematician and astronomer | 1792 - 1871 |