From:
Charles Robert Darwin
To:
Alfred Russel Wallace
Date:
5 May [1867]
Source of text:
The British Library (Add 46434 f. 89)
Summary:
Returns ARW’s notes. He will work up subject much better than CD.
Apologises for the note of illiberality in his letter regarding ARW’s work on the colouring and other sexual differences in mammals.
Discusses laws of inheritance based on sexual selection.
He questions the extent of applicability of principles of protection and sexual selection to lower animal forms, though Ernst Haeckel has shown how protection may account for transparency and absence of colour in lower oceanic animals.
Contributor:
Darwin Correspondence Project