From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
[mid-July 1845]
Source of text:
DAR 100: 49–50
Summary:
The translation of Humboldt’s Kosmos [Cosmos (1846–58)] is delayed.
Gives instances of peculiar genera with several good species in very small islands. Scarcity of insects on islands.
JDH cannot prove that there is much hybridising, but does not see why there should not be. "Bother variation, development & all such subjects, it is reasoning in a circle I believe after all."
Contributor:
Darwin Correspondence Project
