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To C. G. Semper   6 February 1881

Summary

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

Discusses cause of variability.

Author:  Charles Robert Darwin
Addressee:  Carl Gottfried Semper
Date:  6 Feb 1881
Classmark:  Universitäts- und Landesbibliothek Düsseldorf (slg 60/Dok/62)
Letter no:  DCP-LETT-13040

To C. G. Semper   19 July 1881

Summary

Thinks CGS right not to reply to critical article by Lankester.

Discusses direct action of environment as cause of variability; the finding of Hermann Hoffmann that direct action of environment affects plants very little.

Author:  Charles Robert Darwin
Addressee:  Carl Gottfried Semper
Date:  19 July 1881
Classmark:  Universitäts- und Landesbibliothek Düsseldorf (slg 60/Dok/63)
Letter no:  DCP-LETT-13251
Document type
letter (2)
Author
Darwin, C. R.[X]
Addressee
Semper, C. G.[X]
Correspondent
Date
1881
02 (1)
07 (1)
letter