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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

From A. R. Wallace   [27 September 1857]

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Summary

Refers to CD’s letter of "May last". ARW’s views on order of succession of species are in accordance with CD’s.

Disappointed that his paper ["On the law which has regulated the introduction of new species", Ann. & Mag. Nat. Hist. 2d ser. 16 (1855): 184–96] elicited no discussion; now ARW is trying to prove it. Paper merely states the theory.

On black jaguars breeding inter se: ARW has never heard of a parti-coloured one.

Author:  Alfred Russel Wallace
Addressee:  Charles Robert Darwin
Date:  [27 Sept 1857]
Classmark:  DAR 47: 145
Letter no:  DCP-LETT-2145
Document type
letter (3)
Addressee
Correspondent
Darwin, C. R.[X]
Wallace, A. R.[X]
Date
1857
05 (1)
09 (1)
12 (1)
letter