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Pickard-Cambridge, Octavius in correspondent 
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From:
Octavius Pickard-Cambridge
To:
Charles Robert Darwin
Date:
17 Feb 1874
Source of text:
DAR 161: 7
Summary:

Criticises sexual selection theory. Supports natural selection.

Gives CD references on proportion of sexes in spiders.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Octavius Pickard-Cambridge
Date:
[before 20 Feb 1874]
Source of text:
American Philosophical Society (Mss.B.D25.437)
Summary:

Discusses meaning of term "sexual selection".

Comments on variability in males.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Octavius Pickard-Cambridge
Date:
26 Aug [1878]
Source of text:
Gallery of History (dealers) (15 January 1997)
Summary:

Sends address of Fritz Müller.

Contributor:
Darwin Correspondence Project