From:
John Blackwall
To:
Charles Robert Darwin
Date:
12 Feb 1868
Source of text:
DAR 82: A78–9
Summary:
Variability of sizes and colours in spiders; on proportion of sexes; courtship of spiders.
Contributor:
Darwin Correspondence Project
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
