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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
Document type
letter (2)
Author
Addressee
Correspondent
Date
1868 (1)
1876 (1)
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