| RefNo | HS/18/151 | 
| Level | Item | 
| Title | Letter, from Charles Wheatstone to Sir John Herschel, dated at 20 Conduit St. | 
| Creator | Charles Wheatstone | 
| Recipient | John Frederick William Herschel | 
| Date | 30 April 1846 | 
| Description | Autograph letter signed by sender. Gives John Frederick William Herschel directions to Kew Observatory. | 
| Language | English | 
| Extent | 2pp | 
| Format | Manuscript | 
| Place origin | 20 Conduit St., London | 
| Origin coordinates | 51.5121, -0.1423 | 
| Digital images | View item on Science in the Making | 
| AccessStatus | Open | 
| URLDescription | Also available on Epsilon | 
| URL | https://epsilon.ac.uk/view/herschel/letters/Herschel7950 | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA7559 | Wheatstone; Sir; Charles (1802 - 1875); physicist | 1802 - 1875 | 
| NA8238 | Herschel; Sir; John Frederick William (1792 - 1871); mathematician and astronomer | 1792 - 1871 |