From:
Edward Blyth
To:
Charles Robert Darwin
Date:
[before 25 Mar 1868]
Source of text:
DAR 83: 154–5, DAR 84.1: 131–3, DAR 48: A77, DAR 84.2: 187v
Summary:
Detailed notes on secondary sexual differences in various species of birds and mammals.
Contributor:
Darwin Correspondence Project