Search: Charles Darwin in collection 
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From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
11 Feb 1868
Source of text:
The British Library (Loan MS 10 no 21)
Summary:

Is working on sexual selection and is interested in any anomalous sex ratios in lower animals and any sex-related characters.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Edward Gray
Date:
17 Feb [1868]
Source of text:
The British Library (Egerton MS 2348: 234)
Summary:

Thanks for Nathusius [Die Racen des Schweines (1860)].

CD will call on JEG to hear his views on specific differences of pigs.

Does not know who has "cut me up so severely" in the Athenæum but suspects "your great man in the Museum" [Richard Owen].

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Alfred Russel Wallace
Date:
22 Feb [1868]
Source of text:
The British Library (Add MS 46434: 104–5)
Summary:

Reports work on sexual selection. Problems with the relative numbers of the two sexes and polygamy. Asks ARW’s help with several questions on polygamous birds.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Alfred Russel Wallace
Date:
27 Feb [1868]
Source of text:
The British Library (Add MS 46434: 108–11)
Summary:

Pleased by ARW’s response to Pangenesis.

On negative reception by his friends.

Further argument concerning sterility and natural selection.

Polygamy and sexual selection.

Protection.

Contributor:
Darwin Correspondence Project