| RefNo | HS/10/99 | 
| Level | Item | 
| Title | Letter, from Robert Hunt to Sir John Herschel, dated at Falmouth | 
| Creator | Hunt; Robert (1807-1887); mineralogist | 
| Recipient | John Frederick William Herschel | 
| Date | 23 April 1843 | 
| Description | Autograph letter signed by sender. Sends some specimens of photographs he has made by using bichromate of potash and an acid solution of nitrate of mercury. Gives details of a luminous phenomena he has seen in the S.W. and would like an explanation of it from John Frederick William Herschel. | 
| Language | English | 
| Extent | 3pp | 
| Format | Manuscript | 
| Place origin | Falmouth | 
| Origin coordinates | 50.15, -5.07 | 
| Digital images | View item on Science in the Making | 
| AccessStatus | Open | 
| URLDescription | Also available on Epsilon | 
| URL | https://epsilon.ac.uk/view/herschel/letters/Herschel10747 | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA3789 | Hunt; Robert (1807 - 1887); mineralogist | 1807 - 1887 | 
| NA8238 | Herschel; Sir; John Frederick William (1792 - 1871); mathematician and astronomer | 1792 - 1871 |