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From Alexander von Humboldt   18 September 1839

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.

Author:  Friedrich Wilhelm Heinrich Alexander (Alexander) von Humboldt
Addressee:  Charles Robert Darwin
Date:  18 Sept 1839
Classmark:  DAR 204: 180
Letter no:  DCP-LETT-534
Document type
letter (1)
Author
Humboldt, Alexander von[X]
Addressee
Correspondent
Darwin, C. R.[X]
Humboldt, Alexander von[X]
Date
1839 (1)
letter