| RefNo | HS/25/3/8 |
| Level | Item |
| Title | Copy letter, from Sir John Herschel to James David Forbes, dated at Slough |
| Creator | John Frederick William Herschel |
| Recipient | James David Forbes |
| Date | 5 August 1832 |
| Description | Copy letter in John Herschel's hand. Suggests that James Forbes use his instruments to compare the force of solar radiation at high and low elevations. Delineates possible methods for this experimentation, and lists results of similar experiments. Includes further information on the actinometer. |
| Language | English |
| Extent | 3pp |
| Format | Manuscript |
| Place origin | Slough, Berkshire |
| Origin coordinates | 51.5082, -0.5954 |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |
| RelatedMaterial | Original available: St. Andrews 123 |
| URLDescription | Also available on Epsilon |
| URL | https://epsilon.ac.uk/view/herschel/letters/Herschel3591
|
Fellows associated with this archive
| Code | PersonName | Dates |
| NA8238 | Herschel; Sir; John Frederick William (1792 - 1871); mathematician and astronomer | 1792 - 1871 |
| NA6280 | Forbes; James David (1809 - 1868); natural philosopher | 1809 - 1868 |