| RefNo | HS/17/290 | 
| Level | Item | 
| Title | Letter, from William Henry Fox Talbot to Sir John Herschel, dated at London | 
| Creator | Talbot; William Henry Fox (1800-1877); British pioneer of photography | 
| Recipient | John Frederick William Herschel | 
| Date | 28 March 1839 | 
| Description | Autograph letter signed by sender. Comments on a number of chemicals used in photography, as well as referring to John Frederick William Herschel's process of making 'enlargements.' | 
| Language | English | 
| Extent | 3pp | 
| Format | Manuscript | 
| Place origin | London | 
| Origin coordinates | 51.507222, -0.1275 | 
| Digital images | View item on Science in the Making | 
| AccessStatus | Open | 
| URLDescription | Also available on Epsilon | 
| URL | https://epsilon.ac.uk/view/herschel/letters/Herschel1342 | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA5837 | Talbot; William Henry Fox (1800 - 1877) | 1800 - 1877 | 
| NA8238 | Herschel; Sir; John Frederick William (1792 - 1871); mathematician and astronomer | 1792 - 1871 |