| RefNo | HS/8/223 | 
| Level | Item | 
| Title | Letter, from John Gorham to Sir John Herschel, dated at Tonbridge | 
| Creator | Gorham; John (1814-1899); physician | 
| Recipient | John Frederick William Herschel | 
| Date | 14 January 1868 | 
| Description | Autograph letter signed by sender. Some years ago John Frederick William Herschel witnessed his experiments on the rotation of discs. Has written a paper on this subject and would be glad of his comments on whether he has chosen the right forms for the colors of the circle. | 
| Language | English | 
| Extent | 2pp | 
| Format | Manuscript | 
| Place origin | Tonbridge, Kent | 
| Origin coordinates | 51.1987, 0.2764 | 
| Digital images | View item on Science in the Making | 
| AccessStatus | Open | 
| URLDescription | Also available on Epsilon | 
| URL | https://epsilon.ac.uk/view/herschel/letters/Herschel9889
 | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA8238 | Herschel; Sir; John Frederick William (1792 - 1871); mathematician and astronomer | 1792 - 1871 |