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To T. H. Huxley   17 January [1857]

Summary

Asks THH question on flow of glaciers after ice has been fractured and fragmented.

CD had to leave Royal Society lecture [joint paper by THH and J. Tyndall, "On the structure and motions of glaciers", Philos. Trans. R. Soc. Lond. 147 (1857): 327–46] before the end because of headache.

Author:  Charles Robert Darwin
Addressee:  Thomas Henry Huxley
Date:  17 Jan [1857]
Classmark:  DAR 261.8: 1 (EH 88205939)
Letter no:  DCP-LETT-2041

To T. H. Huxley   3 February [1857]

Summary

Thanks THH for his response on glacial movement. Hopes Tyndall will experiment on broken ice and explain how two pieces of ice can freeze together.

Sorry to hear of THH’s row with Richard Owen.

Author:  Charles Robert Darwin
Addressee:  Thomas Henry Huxley
Date:  3 Feb [1857]
Classmark:  Imperial College of Science, Technology, and Medicine Archives (Huxley 5: 104)
Letter no:  DCP-LETT-2045

To T. H. Huxley   5 July [1857]

Summary

Asks THH’s opinion on embryological views of G. A. Brullé [Ann. & Mag. Nat. Hist. 13 (1844): 484–6] and F. M. Barnéoud [Ann. des Sci. Nat. ser. 3, Bot. 6 (1846): 268–96] and on Milne-Edwards’ classification.

Has been reading John Goodsir ["On the morphological constitution of the skeleton of the vertebrate head", Edinburgh New Philos. J. 2d ser. 5 (1857): 123–78].

Has embryology of bats ever been worked out?

Author:  Charles Robert Darwin
Addressee:  Thomas Henry Huxley
Date:  5 July [1857]
Classmark:  Imperial College of Science, Technology, and Medicine Archives (Huxley 5: 67)
Letter no:  DCP-LETT-2118

From T. H. Huxley   7 July 1857

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Summary

THH comments on G. A. Brullé’s paper ["Researches upon the transformations of the appendages of the Articulata", Ann. & Mag. Nat. Hist. 13 (1844): 484–6].

Author:  Thomas Henry Huxley
Addressee:  Charles Robert Darwin
Date:  7 July 1857
Classmark:  DAR 11.1: 41a
Letter no:  DCP-LETT-2119

To T. H. Huxley   9 July [1857]

Summary

Thanks THH for his cautionary response on Brullé, but departs from THH in thinking that Barnéoud, if true, would shed light on Milne-Edwards’ proposition that the wider apart classes of animals are the earlier they depart from common embryonic plan.

Author:  Charles Robert Darwin
Addressee:  Thomas Henry Huxley
Date:  9 July [1857]
Classmark:  Imperial College of Science, Technology, and Medicine Archives (Huxley 5: 50)
Letter no:  DCP-LETT-2122

To T. H. Huxley   15 September [1857]

Summary

Thanks for three last lectures and the account of cirripedes.

Difficulty of classifying the higher groups.

Author:  Charles Robert Darwin
Addressee:  Thomas Henry Huxley
Date:  15 Sept [1857]
Classmark:  Imperial College of Science, Technology and Medicine Archives (Huxley 5: 137)
Letter no:  DCP-LETT-2141

To T. H. Huxley   26 September [1857]

Summary

Agassiz’s superficiality and wretched reasoning powers. But he stirred up Europe on glaciers. Lyell has been working on their effects – testing work of others.

CD believes "Natural Systems" ought to be simply genealogical. "Time will come when we shall have true genealogical trees of each great kingdom of nature."

Author:  Charles Robert Darwin
Addressee:  Thomas Henry Huxley
Date:  26 Sept [1857]
Classmark:  Imperial College of Science, Technology, and Medicine Archives (Huxley 5: 54)
Letter no:  DCP-LETT-2143

From T. H. Huxley   [before 3 October 1857]

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Summary

On classification and possibilities of a scientific morphology and zoology. CD’s "pedigree business" is important for physiology but has nothing to do with pure zoology any more than human pedigree has to do with the census. Zoological classification is a census of the animal world.

Author:  Thomas Henry Huxley
Addressee:  Charles Robert Darwin
Date:  [before 3 Oct 1857]
Classmark:  DAR 205.5: 218
Letter no:  DCP-LETT-2144

To T. H. Huxley   3 October [1857]

Summary

Thinks naturalists look for something further than Cuvier’s view of classification. Poses a theoretical problem on the classification of the races of man to prove that a genealogical system is best.

Author:  Charles Robert Darwin
Addressee:  Thomas Henry Huxley
Date:  3 Oct [1857]
Classmark:  Imperial College of Science, Technology and Medicine Archives (Huxley 5: 139)
Letter no:  DCP-LETT-2150

To T. H. Huxley   [before 12 November 1857]

Summary

Glad THH has taken up aphid question versus Owen ["On the agamic reproduction and morphology of Aphis", Trans. Linn. Soc. Lond. 22 (1858): 193–236].

Fertilisation and inheritance discussed. Speculates that fertilisation may be a mixture rather than a fusion. Can understand in no other way why crossed forms tend to go back to ancestral forms.

Author:  Charles Robert Darwin
Addressee:  Thomas Henry Huxley
Date:  [before 12 Nov 1857]
Classmark:  Imperial College of Science, Technology, and Medicine Archives (Huxley 5: 58)
Letter no:  DCP-LETT-2166

To T. H. Huxley   16 December [1857]

Summary

THH’s catalogue [THH and R. Etheridge, A catalogue of the collection of fossils in the Museum of Practical Geology (1865), part published in 1857] best résumé he has seen of science of natural history. On classification he is not quite sure that he wholly goes along with THH. Encloses a few criticisms of THH’s preface.[enclosure survives as copy only].

Author:  Charles Robert Darwin
Addressee:  Thomas Henry Huxley
Date:  16 Dec [1857]
Classmark:  Imperial College of Science, Technology and Medicine Archives (Huxley 5: 151); DAR 145: 178
Letter no:  DCP-LETT-2185

To Thomas Henry Huxley   24 February [1858]

Summary

Congratulations on birth of THH’s daughter [Jessie].

On aboriginal dun colour of horses.

Examples of inaccuracies and perpetuation of errors [on hybrids] by "compilers, of which I am one".

Author:  Charles Robert Darwin
Addressee:  Thomas Henry Huxley
Date:  24 Feb [1858]
Classmark:  Imperial College of Science, Technology, and Medicine Archives (Huxley 5: 107)
Letter no:  DCP-LETT-2224

To T. H. Huxley   23 October [1858]

Summary

CD’s reasons for not signing the memorial requesting removal of natural history exhibits from British Museum. Less sure about moving botanical specimens to Kew. His notion of museum organisation.

Author:  Charles Robert Darwin
Addressee:  Thomas Henry Huxley
Date:  23 Oct [1858]
Classmark:  Imperial College of Science, Technology, and Medicine Archives (Huxley 5: 243)
Letter no:  DCP-LETT-2347

To T. H. Huxley   3 November [1858]

Summary

Hooker has convinced him that move of British Museum by Government is anticipated. He is now willing to sign the memorial. Still fears for library needs, and objects to distant Kensington site. Lyell should be asked to sign.

Author:  Charles Robert Darwin
Addressee:  Thomas Henry Huxley
Date:  3 Nov [1858]
Classmark:  Imperial College of Science, Technology, and Medicine Archives (Huxley 5: 248)
Letter no:  DCP-LETT-2352

To T. H. Huxley   1 December [1858]

Summary

Has had some misgivings about the memorial but now thinks his fears were vain and cowardly. Regrets R. I. Murchison was not told in advance. His low opinion of the Government and B. Disraeli.

Author:  Charles Robert Darwin
Addressee:  Thomas Henry Huxley
Date:  1 Dec [1858]
Classmark:  Imperial College of Science, Technology, and Medicine Archives (Huxley 5: 250)
Letter no:  DCP-LETT-2376

From T. H. Huxley   17 December 1858

Summary

K. E. von Baer’s view of the air bladder of fishes.

Author:  Thomas Henry Huxley
Addressee:  Charles Robert Darwin
Date:  17 Dec 1858
Classmark:  DAR 166: 289
Letter no:  DCP-LETT-2381

To T. H. Huxley   8 March [1859]

Summary

Sends THH questions about "serial homologies" and "vegetative repetition" in Mollusca and Radiata.

Abstract volume [Origin] nearly completed.

Author:  Charles Robert Darwin
Addressee:  Thomas Henry Huxley
Date:  8 Mar [1859]
Classmark:  Imperial College of Science, Technology, and Medicine Archives (Huxley 5: 61)
Letter no:  DCP-LETT-2425

From T. H. Huxley   [9–12 March 1859]

Summary

Serial homologies in the Mollusca. Gives instances of repetition of homological parts in Radiata.

Author:  Thomas Henry Huxley
Addressee:  Charles Robert Darwin
Date:  [9–12 Mar 1859]
Classmark:  DAR 166: 288
Letter no:  DCP-LETT-2427

To T. H. Huxley   13 [March 1859]

Summary

Thanks for THH’s examples of serially modified and homologous parts in Radiata. Cannot understand how he forgot such cases.

Agassiz’s Essay on classification [1859] utterly impracticable rubbish.

Author:  Charles Robert Darwin
Addressee:  Thomas Henry Huxley
Date:  13 [Mar 1859]
Classmark:  Imperial College of Science, Technology, and Medicine Archives (Huxley 5: 258)
Letter no:  DCP-LETT-2430

To T. H. Huxley   2 June [1859]

Summary

THH should understand that CD’s hypothesis [natural selection] has as many flaws and holes as sound parts. The question is whether CD’s rag of a hypothesis is worth anything. A poor rag is better than nothing to carry one’s fruit to market.

Author:  Charles Robert Darwin
Addressee:  Thomas Henry Huxley
Date:  2 June [1859]
Classmark:  Imperial College of Science, Technology and Medicine Archives (Huxley 5: 65)
Letter no:  DCP-LETT-2466
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