From:
Henry Baker Tristram
To:
Charles Robert Darwin
Date:
1 July 1868
Source of text:
DAR 84.1: 93–4, 97
Summary:
On the coloration of 26 species of Saharan birds.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Henry Baker Tristram
Date:
4 July 1868
Source of text:
The British Library (Surrogate RP 9485)
Summary:
Thanks for interesting letter. ‘How very curious the case of the bright-coloured birds which conceal themselves in holes!’
Contributor:
Darwin Correspondence Project