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To Alfred Russel Wallace 1 May 1857
Summary
Reports long preparation of work on how species and varieties differ. Agreement with Wallace’s conclusions as reported in Annals and Magazine of Natural History and in his letter to CD of 10 0ct [1856]. On distinction between domestic varieties and those in "a state of nature".
On mating of jaguars and leopards, the breeding of poultry, pigeons, etc.
Requests help for his experimenting on means of distribution of organic beings on oceanic islands.
| Author: | Charles Robert Darwin |
| Addressee: | Alfred Russel Wallace |
| Date: | 1 May 1857 |
| Classmark: | The British Library (Add MS 46434) |
| Letter no: | DCP-LETT-2086 |
To A. R. Wallace 22 December 1857
Summary
Comments on agreement of their respective views on distribution.
Reference to differences on subsidence.
Reports on progress of his work and praises ARW’s investigations.
| Author: | Charles Robert Darwin |
| Addressee: | Alfred Russel Wallace |
| Date: | 22 Dec 1857 |
| Classmark: | The British Library (Add MS 46434) |
| Letter no: | DCP-LETT-2192 |
