Darwin-Hooker Letters : Letter from C. R. Darwin to J. D. Hooker 10 December [1856]
Darwin, Charles Robert
Darwin-Hooker Letters
<p style='text-align: justify;'>CD is convinced of relation between separation of sexes and tree-habit.</p><p style='text-align: justify;'>Recent hard blows against crossing theory.</p><p style='text-align: justify;'>CD long tormented by land molluscs on oceanic islands; found transport possible experimentally.</p>