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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 |
