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To C. G. Semper   19 July 1878

Summary

Offers to give CGS a writing machine.

Author:  Charles Robert Darwin
Addressee:  Carl Gottfried Semper
Date:  19 July 1878
Classmark:  Universitäts- und Landesbibliothek Düsseldorf (slg 60/Dok/57)
Letter no:  DCP-LETT-11617

From C. G. Semper   22 July 1878

Summary

Thanks CD for his kind letter and accepts his offer of a writing machine.

Author:  Carl Gottfried Semper
Addressee:  Charles Robert Darwin
Date:  22 July 1878
Classmark:  DAR 177: 137
Letter no:  DCP-LETT-11624

To C. G. Semper   24 July [1878]

Summary

Pleased CGS will accept machine.

Author:  Charles Robert Darwin
Addressee:  Carl Gottfried Semper
Date:  24 July [1878]
Classmark:  Universitäts- und Landesbibliothek Düsseldorf (slg 60/Dok/58)
Letter no:  DCP-LETT-11629

From C. G. Semper   5 October 1878

Summary

Thanks CD for writing machine.

Recalls visit by CD’s son [Francis].

Author:  Carl Gottfried Semper
Addressee:  Charles Robert Darwin
Date:  5 Oct 1878
Classmark:  DAR 177: 140
Letter no:  DCP-LETT-11716

To C. G. Semper   26 November [1878]

Summary

Discusses views of Moritz Wagner on modification of species. Two different cases: one in which a species is modified in the same country and cases in which a species splits. Glad CGS is taking up subject.

Author:  Charles Robert Darwin
Addressee:  Carl Gottfried Semper
Date:  26 Nov [1878]
Classmark:  Universitäts- und Landesbibliothek Düsseldorf (slg 60/Dok/59)
Letter no:  DCP-LETT-11760

To C. G. Semper   30 November 1878

Summary

Discusses effect of isolation on species modification and the views of Moritz Wagner on the subject.

Author:  Charles Robert Darwin
Addressee:  Carl Gottfried Semper
Date:  30 Nov 1878
Classmark:  Universitäts- und Landesbibliothek Düsseldorf (slg 60/Dok/60)
Letter no:  DCP-LETT-11767

From C. G. Semper   6 December 1878

Summary

Asks whether he may use CD’s letters in his work [Die natürlichen Existenzbedingungen der Thiere (1880)] in order to show that Moritz Wagner has misrepresented CD’s views.

Discusses the influence of isolation and external conditions on animals, and the relative importance of the direct effect of external conditions and of selection in bringing about change.

Author:  Carl Gottfried Semper
Addressee:  Charles Robert Darwin
Date:  6 Dec 1878
Classmark:  DAR 202: 120
Letter no:  DCP-LETT-11776

To C. G. Semper   [after 6 December 1878]

Summary

Gives CGS permission to use his letters in any way he thinks fit.

Discusses the direct effect of external conditions as an agent of change in organisms; has encountered many cases since the publication of Origin.

Author:  Charles Robert Darwin
Addressee:  Carl Gottfried Semper
Date:  [after 6 Dec 1878]
Classmark:  DAR 202: 120v
Letter no:  DCP-LETT-11777
Document type
letter (8)
Addressee
Correspondent
Date
1878
07 (3)
10 (1)
11 (2)
12 (2)
letter