From:
Charles Robert Darwin
To:
Roderick Impey Murchison, 1st baronet
Date:
[before 30 May 1849]
Source of text:
Murchison 1849, p. 67 n.
Summary:
CD believes that floating ice and glaciers produce indistinguishable effects in actions such as scoring or polishing rocks.
Contributor:
Darwin Correspondence Project