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