Copy letter, from Sir John Herschel to [William Whewell], dated at Slough
Reference number: HS/25/5/16
Date: 28 August 1839
Description
Contemporary copy in sender's hand, signed by sender. Wishes to have mentioned to the Physical Section of the B.A.A.S. that John Frederick William Herschel has discovered that the extreme red rays [infra-red?] of the sun do not darken photographic paper, but tend to whiten it.
- Reference number
- HS/25/5/16
- Earliest possible date
- 28 August 1839
- 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 [William Whewell], dated at Slough, 28 August 1839, HS/25/5/16, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/hs_25_5_16/copy-letter-from-sir-john-herschel-to-william-whewell-dated-at-slough, accessed on 09 December 2025
Link to this record
https://makingscience.royalsociety.org/items/hs_25_5_16/copy-letter-from-sir-john-herschel-to-william-whewell-dated-at-slough
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Hierarchy
This item is part of:
-
Correspondence of Sir John Frederick William Herschel
1812-1870 Creator: 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. 5, from 23 February 1836 to 29 November 1839
1873 Creator: John Frederick William Herschel , John Herschel Reference number: HS/25/5
Related Fellows
-
John Frederick William Herschel
Creator -
William Whewell
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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