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DCP-LETT-5528

From:
Charles Robert Darwin
To:
Alfred Russel Wallace
Date:
5 May [1867]
Source of text:
The British Library (Add 46434 f. 89)
Summary:

Returns ARW’s notes. He will work up subject much better than CD.

Apologises for the note of illiberality in his letter regarding ARW’s work on the colouring and other sexual differences in mammals.

Discusses laws of inheritance based on sexual selection.

He questions the extent of applicability of principles of protection and sexual selection to lower animal forms, though Ernst Haeckel has shown how protection may account for transparency and absence of colour in lower oceanic animals.

Contributor:
Darwin Correspondence Project

Herschel10644

From:
Sir John Herschel
To:
Frederick Howlett
Date:
[5 May 1867]
Source of text:
RS:HS 24.198
Summary:

Proposes to travel to visit FH next day to observe the sun with him.

Contributor:
John Herschel Project

Herschel13051

From:
Sir John Herschel
To:
George Gabriel Stokes
Date:
[5 May 1867]
Source of text:
TxU:H/L-0463 verso; Reel 1055
Summary:

Describes problem with spectral lines in telescope while trying to understand William Huggins's results.

Contributor:
John Herschel Project

Herschel1441

From:
Sir John Herschel
To:
George Gabriel Stokes
Date:
[5 May 1867]
Source of text:
Cambridge University Library 7656/H713 (draft RS:HS 17.66 & C: RS:HS 24.197)
Summary:

Comments on impossibility of increasing the intrinsic illumination of a source with a telescope; how to obtain the spectrum of red flames of the sun.

Contributor:
John Herschel Project

Herschel275

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[5 May 1867]
Source of text:
RGO 6.122.177
Summary:

Is assisting in communication between G. G. Stokes and GA, about stereoscopic observation of eclipses; JH is not mobile enough to attend the next Board of Visitors meeting.

Contributor:
John Herschel Project
Text Online

WCP1879

From:
Charles Robert Darwin
To:
Alfred Russel Wallace
Date:
5 May [1867]
Source of text:
  • British Library, The: BL Add. 46434 ff. 89-91
  • Marchant, J. (Ed.). (1916). In: Alfred Russel Wallace; Letters and Reminiscences. Vol. 1. London & New York: Cassell & Co. [pp. 185-186]
Summary:

No summary available.

Contributor:
Alfred Russel Wallace Correspondence Project
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