From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
5 Aug [1856]
Source of text:
DAR 114: 173
Summary:
Agrees that Lyell’s letters shed no new light on extensions issue. Continental extensions: opposes their being hypothesised all over world.
Commonality of alpine plants damns both extension and migration.
Contributor:
Darwin Correspondence Project
