From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
10 Dec [1856]
Source of text:
DAR 114: 186
Summary:
CD is convinced of relation between separation of sexes and tree-habit.
Recent hard blows against crossing theory.
CD long tormented by land molluscs on oceanic islands; found transport possible experimentally.
Contributor:
Darwin Correspondence Project
