From:
Friedrich Wilhelm Heinrich Alexander (Alexander) von Humboldt
To:
Charles Robert Darwin
Date:
18 Sept 1839
Source of text:
DAR 204: 180
Summary:
Praises CD’s Journal of researches and comments on some of CD’s observations and conclusions. Considers volcanic activity and its effect on past climate and changes in climate over time. Discusses glacial phenomena. Believes the climate of the coast of Peru is modified by cold sea-currents.
Contributor:
Darwin Correspondence Project