Search: Darwin, C. R. in correspondent 
Semper, C. G. in correspondent 
1880-1889::1881::02 in date 
Darwin, C. R. in author 
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From:
Charles Robert Darwin
To:
Carl Gottfried Semper
Date:
6 Feb 1881
Source of text:
Universitäts- und Landesbibliothek Düsseldorf (slg 60/Dok/62)
Summary:

Comments on CGS’s The natural conditions of existence [1881] and on views of Moritz Wagner on geographical distribution.

Discusses cause of variability.

Contributor:
Darwin Correspondence Project