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
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
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
