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From:
Henry Walter Bates
To:
Charles Robert Darwin
Date:
18 Feb 1868
Source of text:
DAR 86: A4–5
Summary:

Has put question of proportion of sexes in insects to the Entomological Society. Quotes H. T. Stainton and F. Smith. Cites some cases mentioned by other members.

Is reading Variation; does not quite understand Pangenesis.

Contributor:
Darwin Correspondence Project
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From:
John Blackwall
To:
Charles Robert Darwin
Date:
18 Feb 1868
Source of text:
DAR 86: A2–3
Summary:

Proportion of sexes in spiders; coloration.

Contributor:
Darwin Correspondence Project
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From:
Johann Xaver Robert (Robert) Caspary
To:
Charles Robert Darwin
Date:
18 Feb 1868
Source of text:
DAR 76: B173–4
Summary:

Discusses the flowers of, and cross- and self-fertilisation in, certain aquatic plants. Gives cases of dichogamy and perfect self-fertility.

Contributor:
Darwin Correspondence Project
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Text Online
From:
Ferdinand von Mueller
To:
John Balfour
Date:
18 February 1868
Source of text:
Royal Botanic Garden Edinburgh J. H. Balfour Correspondence, volume X, no 274
Summary:

No summary available.

Contributor:
Correspondence of Ferdinand von Mueller Project
From:
Charles Robert Darwin
To:
Henry Tibbats Stainton
Date:
18 Feb [1868]
Source of text:
Natural History Museum, Library and Archives (General Special Collections MSS DAR 20)
Summary:

Asks for information on coloration and proportions of sexes in butterflies and moths for his work on sexual selection.

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:
Charles Robert Darwin
To:
Bartholomew James Sulivan
Date:
18 Feb [1868]
Source of text:
American Philosophical Society (Mss.B.D25.)
Summary:

CD thanks BJS for photographs of Jemmy [Button]’s son

and for the curious case about stallions, which leads him to ask whether BJS has observed that horses when fighting try especially to bite each other’s necks.

Does he know anything about male seals fighting?

Contributor:
Darwin Correspondence Project