From:
Charles Robert Darwin
To:
George Henry Kendrick Thwaites
Date:
19 May [1868]
Source of text:
American Philosophical Society (Mss.B.D25.342)
Summary:
GHKT should not take more trouble about human expression. Discusses contraction of orbicular muscles in elephants.
Asks about colour of first plumage of breeds of Ceylon fowls in which hens alone are coloured.
Contributor:
Darwin Correspondence Project