To Moritz Wagner 13 October 1876
Summary
Comments on essays by MW [Das Ausland, May 1875]. Criticises his theory of isolation as source of species change: "But my strongest objection to your theory is that it does not explain the manifold adaptations in structure in every organic being". Believes MW has misunderstood his views: "I believe that all the individuals of a species can be slowly modified within the same district … I do not believe that one species will give birth to two or more new species, as long as they are mingled together within the same district."
Author: | Charles Robert Darwin |
Addressee: | Moritz Friedrich (Moritz) Wagner |
Date: | 13 Oct 1876 |
Classmark: | DAR 148: 198; LL 3: 159 |
Letter no: | DCP-LETT-10643 |
To Moritz Wagner [April–June 1868]
Summary
Thanks MW for his essay [Die Darwin’sche Theorie und das Migrationsgesetz der Organismen (1868)]. Is highly gratified that MW agrees with him to a considerable extent.
Almost wishes that he could believe in the importance of isolation to the same extent as MW.
Author: | Charles Robert Darwin |
Addressee: | Moritz Friedrich (Moritz) Wagner |
Date: | [Apr–June 1868] |
Classmark: | LL 3: 157; DAR 148: 198 |
Letter no: | DCP-LETT-5760 |