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To G. H. K. Thwaites   21 March [1860]

Summary

Is pleased GHKT goes a little way with him.

Has rectified in foreign editions of Origin his omission of an explanation of the failure of many forms to progress;

also has discussion of beauty in MS. Does GHKT really believe Diatomaceae, for instance, were created beautiful so that man, millions of generations later, should admire them through a microscope? CD attributes most of these structures to unknown laws of growth; useful structures are accounted for by natural selection.

Author:  Charles Robert Darwin
Addressee:  George Henry Kendrick Thwaites
Date:  21 Mar [1860]
Classmark:  Smithsonian Libraries (Dibner Library of the History of Science and Technology MSS 405 A. Gift of the Burndy Library)
Letter no:  DCP-LETT-2731

To G. H. K. Thwaites   20 October [1860]

Summary

Thanks for fact about ducks in Ceylon. Asks for more information.

Pleased by GHKT’s sentence [about Origin].

Author:  Charles Robert Darwin
Addressee:  George Henry Kendrick Thwaites
Date:  20 Oct [1860]
Classmark:  The New York Public Library. Astor, Lenox and Tilden Foundations. Manuscripts and Archives Division. (Richard John Levy and Sally Waldman Sweet collection: box 2, folder 12)
Letter no:  DCP-LETT-2957

From George Henry Kendrick Thwaites   [14 February 1860]

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Summary

Questions how natural selection can explain why some cells remain simple and others are modified into highly complex structures.

Reports on the spread in Ceylon of a recently introduced plant.

Author:  George Henry Kendrick Thwaites
Addressee:  Charles Robert Darwin
Date:  [14 Feb 1860]
Classmark:  DAR 205.4: 100
Letter no:  DCP-LETT-2697
Document type
letter (3)
Correspondent
Darwin, C. R.[X]
Thwaites, G. H. K.[X]
Date
1860
02 (1)
03 (1)
10 (1)
letter