From:
Charles Robert Darwin
To:
George Henry Kendrick Thwaites
Date:
31 Jan [1868]
Source of text:
American Philosophical Society (Mss.B.D25.325)
Summary:
Asks GHKT about eyes of screaming elephants.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George Henry Kendrick Thwaites
Date:
21 Mar [1860]
Source of text:
Smithsonian Libraries and Archives (Dibner Library of the History of Science and Technology MSS 405 A. Gift of the Burndy Library)
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.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George Henry Kendrick Thwaites
Date:
20 Oct [1860]
Source of text:
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)
Summary:
Thanks for fact about ducks in Ceylon. Asks for more information.
Pleased by GHKT’s sentence [about Origin].
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George Henry Kendrick Thwaites
Date:
15 June [1862]
Source of text:
American Philosophical Society (Mss.B.D25.278)
Summary:
Refers to his Primula paper [Collected papers 2: 45–63]. Asks GHKT to investigate a similar case in Cinchona.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George Henry Kendrick Thwaites
Date:
20 June [1862]
Source of text:
American Philosophical Society (Mss.B.D25.280)
Summary:
Asks for information concerning heterostyled and dioecious plants.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George Henry Kendrick Thwaites
Date:
29 Dec [1862]
Source of text:
Cleveland Health Sciences Library (Robert M. Stecher collection)
Summary:
Asks for any authentic cases of "sports", which CD calls "bud-variations". Flowers introduced from warmer temperate regions are said to be particularly apt to sport in this way.
CD now has proof that Cinchona is dimorphic and that some dimorphic plants are absolutely sterile with their own-form pollen.
Asks GHKT to examine or send pollen specimens of two Ceylon genera.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George Henry Kendrick Thwaites
Date:
30 Mar [1863]
Source of text:
American Philosophical Society (Mss.B.D25.293)
Summary:
Thanks GHKT for specimens of Sethia. Discusses functions of their dimorphism for insect fertilisation.
Discusses polymorphism and fertilisation in Lythraceae.
Asks for seed of Limnanthemum.
Describes his interest in galls.
Discusses curious specimens of Gomphia and Lesemia.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George Henry Kendrick Thwaites
Date:
29 July [1863]
Source of text:
American Philosophical Society (Mss.B.D25.295)
Summary:
Thanks GHKT for Limnanthemum seed.
Comments on his view of algal reproduction.
Discusses flower of Cassia.
Sends photograph of himself.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George Henry Kendrick Thwaites
Date:
13 Feb [1868]
Source of text:
American Philosophical Society (Mss.B.D25.341)
Summary:
Asks whether mane in male of Macacus silenus protects it from bites or is merely ornamental.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George Henry Kendrick Thwaites
Date:
19 May [1868]
Source of text:
American Philosophical Society (Mss.B.D25.342)
Summary:
GHKT should not take more trouble about human expression. Discusses contraction of orbicular muscles in elephants.
Asks about colour of first plumage of breeds of Ceylon fowls in which hens alone are coloured.
Contributor:
Darwin Correspondence Project
From:
Charles Peter Layard
To:
George Henry Kendrick Thwaites
Date:
28 July 1868
Source of text:
DAR 86: A91
Summary:
Has black-boned cocks and hens that show the characteristic that Edgar Layard thought peculiar to the female line. Will provide any particulars that CD wants.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George Henry Kendrick Thwaites
Date:
2 Sept 1868
Source of text:
American Philosophical Society (Mss.B.D25.354)
Summary:
Thanks GHKT and S. O. Glenie for information about fowls.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George Henry Kendrick Thwaites
Date:
28 Sept [1868]
Source of text:
American Philosophical Society (Mss.B.D25.343)
Summary:
Asks him to thank E. L. Layard for trouble taken.
Says Zoological Society "very foolishly" wants no specimens of domestic varieties [from Ceylon].
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George Henry Kendrick Thwaites
Date:
26 Oct [1868]
Source of text:
American Philosophical Society (Mss.B.D25.335)
Summary:
Encloses Queries about expression.
Contributor:
Darwin Correspondence Project
From:
Samuel Owen Glenie
To:
George Henry Kendrick Thwaites
Date:
[before 31 Oct 1868]
Source of text:
DAR 165: 55
Summary:
Relates some observations on the expression of elephants; they do not cry unless the eye is hurt or struck. "Perhaps Mr Darwin will like to know the above."
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George Henry Kendrick Thwaites
Date:
29 Dec 1868
Source of text:
American Philosophical Society (Mss.B.D25.358)
Summary:
Discusses experiments in breeding fowls.
Comments on letter from S. O. Glenie [see 6440] concerning the eyes of trumpeting elephants.
Contributor:
Darwin Correspondence Project