From:
Charles Robert Darwin
To:
Friedrich Wilhelm Heinrich Alexander (Alexander) von Humboldt
Date:
1 Nov 1839
Source of text:
Staatsbibliothek zu Berlin – Preußischer Kulturbesitz (Nachl. Alexander von Humboldt, gr. Kasten 4, Nr. 22, Bl. 1–2)
Summary:
Gratified by AvH’s letter.
Sends data on temperature of the sea in the Galapagos, South Pacific, and the Abrolhos Islands.
Contributor:
Darwin Correspondence Project