From:
Charles Robert Darwin
To:
Charles Lyell, 1st baronet
Date:
5 Mar [1869]
Source of text:
American Philosophical Society (Mss.B.D25.364)
Summary:
Discusses wear and tear due to glaciation and significance of this evidence for dating the glacial period. Mentions views of James Croll and Archibald Geikie on the issue.
Contributor:
Darwin Correspondence Project