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To G. G. Stokes   5 February [1868]

Summary

Thanks for congratulations on Francis Darwin’s success in the tripos examinations at the university of Cambridge.

The king of Prussia has awarded him the order Pour le Mérite für Wissenschaften und Künste.

Author:  Charles Robert Darwin
Addressee:  George Gabriel Stokes, 1st baronet
Date:  5 Feb [1868]
Classmark:  Heritage Auctions (17–18 October 2013)
Letter no:  DCP-LETT-5839H

To George Gabriel Stokes   18 February [1868]

Summary

Wants to know how the colour of the eye of the peacock’s tail is produced, whether it depends upon colouring matter in the feathers or reflection, and whether any varying structural change will account for the series of colours surrounding it.

Author:  Charles Robert Darwin
Addressee:  George Gabriel Stokes, 1st baronet
Date:  18 Feb [1868]
Classmark:  CUL (Add 7656: D73)
Letter no:  DCP-LETT-5891

To G. G. Stokes   28 February [1868]

Summary

Thanks GGS for information on the peacock’s feathers. Asks whether the colour zones around the "eye" could result from varying the thickness of the film of colouring matter or whether it would require different kinds of colouring matter.

Author:  Charles Robert Darwin
Addressee:  George Gabriel Stokes, 1st baronet
Date:  28 Feb [1868]
Classmark:  CUL (Add MS 7656: D74)
Letter no:  DCP-LETT-5950

To G. G. Stokes   11 March [1868]

Summary

Sends GGS examples of feathers from an albino peacock and repeats his query about the zones of colour [see 5950].

Author:  Charles Robert Darwin
Addressee:  George Gabriel Stokes, 1st baronet
Date:  11 Mar [1868]
Classmark:  CUL (Add MS 7656: D75)
Letter no:  DCP-LETT-6003

From G. G. Stokes   27 February 1868

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Summary

On the play of colours in the peacock’s tail.

Author:  George Gabriel Stokes, 1st baronet
Addressee:  Charles Robert Darwin
Date:  27 Feb 1868
Classmark:  DAR 84.1: 47–50
Letter no:  DCP-LETT-5943
Document type
letter (5)
Addressee
Correspondent
Darwin, C. R.[X]
Stokes, G. G.[X]
Date
1868
02 (4)
03 (1)
letter