Search: 1860-1869 in date 
Darwin, C. R. in correspondent 
Stokes, G. G. in correspondent 
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Showing 16 of 6 items

From:
Charles Robert Darwin
To:
George Gabriel Stokes, 1st baronet
Date:
[12 Feb 1863?]
Source of text:
Cambridge University Library Add 7656: D76
Summary:

Thanks GGS for calculation [to determine the chances of the same peculiarity recurring in a family, see Variation 2: 5]

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George Gabriel Stokes, 1st baronet
Date:
5 Feb [1868]
Source of text:
Heritage Auctions (dealers) (17–18 October 2013)
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.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George Gabriel Stokes, 1st baronet
Date:
18 Feb [1868]
Source of text:
CUL (Add 7656: D73)
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.

Contributor:
Darwin Correspondence Project
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From:
George Gabriel Stokes, 1st baronet
To:
Charles Robert Darwin
Date:
27 Feb 1868
Source of text:
DAR 84.1: 47–50
Summary:

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

Contributor:
Darwin Correspondence Project
thumbnail
From:
Charles Robert Darwin
To:
George Gabriel Stokes, 1st baronet
Date:
28 Feb [1868]
Source of text:
CUL (Add MS 7656: D74)
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.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George Gabriel Stokes, 1st baronet
Date:
11 Mar [1868]
Source of text:
CUL (Add MS 7656: D75)
Summary:

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

Contributor:
Darwin Correspondence Project