Copy letter, from Sir John Herschel to James David Forbes, dated at Collingwood
Reference number: HS/25/6/15
Date: 15 November 1842

Description
Contemporary copy in sender's hand, signed by sender. Received James Forbes's paper on 'thermographic process.' Believes that thermic rays were responsible for experimental results of James Forbes, J. W. Draper, and Ludwig Moser. John Frederick William Herschel's theory of and experiments with thermic rays, which are different from 'calorific' and visible rays, in solar spectrum.
- Reference number
- HS/25/6/15
- Earliest possible date
- 15 November 1842
- Page extent
- 4 pages
- Format
- Manuscript
- Also available on Epsilon
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Citation
John Frederick William Herschel, Copy letter, from Sir John Herschel to James David Forbes, dated at Collingwood, 15 November 1842, HS/25/6/15, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/hs_25_6_15/copy-letter-from-sir-john-herschel-to-james-david-forbes-dated-at-collingwood, accessed on 25 March 2025
Link to this record
https://makingscience.royalsociety.org/items/hs_25_6_15/copy-letter-from-sir-john-herschel-to-james-david-forbes-dated-at-collingwood
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Hierarchy
This item is part of:
-
Correspondence of Sir John Frederick William Herschel
1812-1870 Creator: Sir; John Frederick William Herschel Reference number: HS -
Correspondence of John Frederick William Herschel: volume 25 Copies of outgoing letters
1873-1875 Reference number: HS/25 -
Copy book of Sir John Herschel's outgoing correspondence, vol. 6, from 3 March 1840 to 27 September 1846
1873 Creator: John Frederick William Herschel , John Herschel Reference number: HS/25/6
Related Fellows
-
John Frederick William Herschel
Creator -
James David Forbes
Recipient
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Herschel Letters
This collection of nearly 10,900 letters, drafts, copies and notes is the largest repository of scientific correspondence from and to Sir John Herschel, leading figure of Victorian science.
Dates: 1807 - 1875
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