From:
Charles Robert Darwin
To:
Unidentified
Date:
31 Dec [1852-3]
Source of text:
Houghton Library, Harvard University (Autograph File, D)
Summary:
Responds to correspondent’s request for information about shells from the Coquimbo beds in Chile. Difficulty in deciding on age of deposits and species. Notes views of Alcide d’Orbigny.
Contributor:
Darwin Correspondence Project