Text Online
From:
Litchfield, H. E.
To:
Darwin, Horace
Date:
[2 December 1873]
Source of text:
DAR 258: 1633
Summary:
No summary available.
Contributor:
Darwin Family Letters
No summary available.
Discusses variation and selection in Harz canaries.
Offers to experiment on the digestibility of chondrin and chlorophyll by Dionaea for CD.
Has noticed that painters depicting complex expressions give different expressions to the two sides of the face.