To C. G. Semper 30 April 1877
Summary
Is honoured by CGS’s dedication [see 10942].
His observation of the dorsal eyes of Onchidium is interesting and surprising.
Author: | Charles Robert Darwin |
Addressee: | Carl Gottfried Semper |
Date: | 30 Apr 1877 |
Classmark: | J. A. Stargardt (dealers) (March 1994); Kotte Autographs (dealers) (March 2016) |
Letter no: | DCP-LETT-10945F |
To C. G. Semper 18 July 1877
Summary
Thanks for CGS’s work [“Über Schneckenaugen” (1877)].
Author: | Charles Robert Darwin |
Addressee: | Carl Gottfried Semper |
Date: | 18 July 1877 |
Classmark: | Universitäts- und Landesbibliothek Düsseldorf (slg 60/Dok/56) |
Letter no: | DCP-LETT-11061 |
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 |
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 |
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 |
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 |
To C. G. Semper 2 October 1879
Summary
Discusses CGS’s account of Pellew Islands. Still believes atolls and barrier reefs in Pacific indicate subsidence. But cases like Pellew Islands, if frequent, would make his conclusions of little value.
Author: | Charles Robert Darwin |
Addressee: | Carl Gottfried Semper |
Date: | 2 Oct 1879 |
Classmark: | Universitäts- und Landesbibliothek Düsseldorf (slg 60/Dok/61) |
Letter no: | DCP-LETT-12245 |
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 |
To C. G. Semper 21 January [1874]
Summary
Asks for information about the title and date of Semper’s essay disputing CD’s theory of coral reefs.
Author: | Charles Robert Darwin |
Addressee: | Carl Gottfried Semper |
Date: | 21 Jan [1874] |
Classmark: | Christie’s (dealers) (8 June 2005) |
Letter no: | DCP-LETT-9252G |