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To J. D. Hooker   [1–29 August 1844]

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Summary

Encloses Ehrenberg letter, Galapagos seaweed, and specimens of Conferva.

H. Denny would like specimens of Antarctic Pediculi.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [1–29 Aug 1844]
Classmark:  DAR 114: 15
Letter no:  DCP-LETT-768

To Adolf von Morlot   9 August [1844]

Summary

Declines to undertake to have AM’s journal published but recommends possible publishers in England.

Expresses scepticism about AM’s glacier theory. Emphasises role of floating ice instead. Mentions article by William Hopkins on movement of glaciers.

Author:  Charles Robert Darwin
Addressee:  Charles Adolphe Morlot (Adolph von Morlot)
Date:  9 Aug [1844]
Classmark:  Burgerbibliothek Bern, Bern, Switzerland
Letter no:  DCP-LETT-769

To Henry Denny   12 August [1844]

Summary

Can hardly believe he made a mistake in specimens sent to HD. Recopies numbers in case he transposed them. [Has to do with lice taken from a specimen of aperea and put into spirits during Beagle voyage.]

Author:  Charles Robert Darwin
Addressee:  Henry Denny
Date:  12 Aug [1844]
Classmark:  American Philosophical Society (Mss.B.D25.)
Letter no:  DCP-LETT-770

To Leonard Horner   29 August [1844]

Summary

Thanks Horner for his letter [about Volcanic islands].

Discusses craters of elevation with respect to the views of Leopold von Buch and Élie de Beaumont. Compares Lyell’s views to those of continental geologists. Mentions reading A. D. d’Orbigny [Voyage dans l’Amérique méridionale (1835–47)].

Encloses note from Emma to Mrs Horner, inviting the Horners to visit Down.

Author:  Charles Robert Darwin
Addressee:  Leonard Horner
Date:  29 Aug [1844]
Classmark:  American Philosophical Society (Mss.B.D25.38)
Letter no:  DCP-LETT-771

To J. D. Hooker   29 [August 1844]

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Summary

Encloses pamphlet from Ehrenberg who asks about deep-sea soundings from JDH’s voyage.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  29 [Aug 1844]
Classmark:  DAR 114: 16
Letter no:  DCP-LETT-772

To Charles Lyell   [1 September 1844]

Summary

Asks about CL’s new book [Travels in North America (1845)].

Discusses views of A. D. d’Orbigny on elevation.

Mentions reading W. H. Prescott [History of the conquest of Mexico (1843)].

Author:  Charles Robert Darwin
Addressee:  Charles Lyell, 1st baronet
Date:  [1 Sept 1844]
Classmark:  American Philosophical Society (Mss.B.D25.39)
Letter no:  DCP-LETT-773

To C. G. Ehrenberg   5 September [1844]

Summary

Has at last received first letter CGE wrote.

More specimens being sent.

Sends his sketch of paper ["Fine dust in the Atlantic Ocean" (1846), Collected papers 1: 199–203].

D’Orbigny considers Pampas clay deposit result of debacle. CD cannot doubt it is slow, estuary deposit. Would be grateful for information on this point.

Author:  Charles Robert Darwin
Addressee:  Christian Gottfried Ehrenberg
Date:  5 Sept [1844]
Classmark:  Museum für Naturkunde Berlin (MfN/HBSB, N005 NL Christian Gottfried Ehrenberg Nr. 43)
Letter no:  DCP-LETT-775

To J. D. Hooker   [8 September 1844]

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Summary

Acknowledges note and parcel for Ehrenberg.

Considers why different areas have different numbers of species. Gives an example opposing JDH’s view that paucity of species results from vicissitudes of climate. CD has concluded that species are most numerous in areas that have most often been divided, isolated from, and then reunited with, other areas. Cannot give detailed reasons but believes that "isolation is the chief concomitant or cause of the appearance of new forms".

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [8 Sept 1844]
Classmark:  DAR 114: 17
Letter no:  DCP-LETT-776

To Gardeners’ Chronicle and Agricultural Gazette   [before 14 September 1844]

Summary

Referring to a correspondent who had written about Pelargonium plants whose leaves had become regularly edged with white, CD reports that nearly all the young leaves of box-trees he had planted have become symmetrically tipped with white. Though these facts seem trivial, CD believes the first appearance of any peculiarity which tends to become hereditary deserves being recorded.

Author:  Charles Robert Darwin
Addressee:  Gardeners’ Chronicle
Date:  [before 14 Sept 1844]
Classmark:  Gardeners’ Chronicle and Agricultural Gazette, no. 37, 14 September 1844, pp. 621
Letter no:  DCP-LETT-777

To Gardeners’ Chronicle and Agricultural Gazette   [before 14 September 1844]

Summary

Asks whether salt and carbonate of lime (in the form of seashells) would act upon each other if slightly moistened and left in great quantities together. The question occurs from CD’s having found in Peru a great bed of recent shells that were mixed with salt, decayed and corroded "in a singular manner". Mentions, as relevant to the value of seashells as manure, that they are dissolved more rapidly by water than any other form of carbonate of lime.

Author:  Charles Robert Darwin
Addressee:  Gardeners’ Chronicle
Date:  [before 14 Sept 1844]
Classmark:  Gardeners’ Chronicle and Agricultural Gazette, no. 37, 14 September 1844, pp. 628–9
Letter no:  DCP-LETT-778

To Adolf von Morlot   10 October [1844]

Summary

Says AM’s letters on glacial action not publishable since they do not give facts. Suggests readings on the subject of glaciers. Expresses doubts about AM’s theory that Scandinavian glaciers brought the boulders he was studying.

Author:  Charles Robert Darwin
Addressee:  Charles Adolphe Morlot (Adolph von Morlot)
Date:  10 Oct [1844]
Classmark:  Burgerbibliothek Bern, Bern, Switzerland
Letter no:  DCP-LETT-780

To James David Forbes   11 October [1844]

Summary

Discusses a specimen of Mexican obsidian with an unusual laminated structure.

Author:  Charles Robert Darwin
Addressee:  James David Forbes
Date:  11 Oct [1844]
Classmark:  University of St Andrews Special Collections (Papers of J. D. Forbes: msdep7 – Incoming letters 1844, no.57)
Letter no:  DCP-LETT-781

To J. D. Forbes   [November? 1844]

Summary

Believes JDF’s discoveries in the structure of glacier ice will explain the structure of many volcanic masses. Will JDF’s views throw any light on the primary laminated rocks?

Author:  Charles Robert Darwin
Addressee:  James David Forbes
Date:  [Nov? 1844]
Classmark:  Proceedings of the Royal Society of Edinburgh 2 1845: 18)
Letter no:  DCP-LETT-786

To Henry Denny   7 November [1844]

Summary

Discusses HD’s information that same species of birds at remote stations have identical parasites. Urges him to investigate N. American land-bird parasites.

Is deeply interested in everything connected with geographical distribution, and the differences between species and varieties.

Author:  Charles Robert Darwin
Addressee:  Henry Denny
Date:  7 Nov [1844]
Classmark:  Cleveland Health Sciences Library (Robert M. Stecher collection)
Letter no:  DCP-LETT-787

To J. D. Hooker   [10–11 November 1844]

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Summary

Origin of Antarctic brash ice.

Further on case of Lycopodium: does JDH know any genera of plants whose species are variable in one continent but not in another? Discussion on variations between floras as regards species richness, and factors affecting geographical distribution. On species, CD expects "that I shall be able to show even to sound naturalists that there are two sides to the question of the immutability of species; – that facts can be viewed and grouped under the notion of allied species having descended from common stocks". Mentions books and papers for and against species mutability. CD believes past absurd ideas arose from no one’s having approached subject on side of variation under domestication.

Would like to see Clarke’s paper

and would welcome visit from JDH.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [10–11 Nov 1844]
Classmark:  DAR 114: 19
Letter no:  DCP-LETT-789

To J. D. Forbes   13 [November 1844]

Summary

Mexican specimen of laminated obsidian.

Comments on Forbes’s publication comparing lava streams and glaciers. Mentions ice-action theories of a young German.

Author:  Charles Robert Darwin
Addressee:  James David Forbes
Date:  13 [Nov 1844]
Classmark:  University of St Andrews Special Collections (Papers of J. D. Forbes: msdep7 – Incoming letters 1844, no.65)
Letter no:  DCP-LETT-790

To Gardeners’ Chronicle   [before 23 November 1844]

Summary

Considers the transmutation of corn is well worth investigation ‘even if it should prove to be only a history of error’.

Author:  Charles Robert Darwin
Addressee:  Gardeners’ Chronicle
Date:  [before 23 Nov 1844]
Classmark:  Gardeners’ Chronicle, 23 November 1844, p. 779
Letter no:  DCP-LETT-791F

To J. D. Hooker   [18 November 1844]

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Summary

Would like JDH to visit. Regrets he will not be fit to visit JDH.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [18 Nov 1844]
Classmark:  DAR 114: 20
Letter no:  DCP-LETT-792

To Adolf von Morlot   28 November [1844]

Summary

Mentions his Plutonic view of earth history.

Cites Lyell’s opinions on loess.

CD doubts contemporaneousness of extinct great animals with ice period.

Cites applicability of Forbes’s theory of glacier structure to structure of volcanic obsidian.

CD is falling astern in the geological race for knowledge.

Author:  Charles Robert Darwin
Addressee:  Charles Adolphe Morlot (Adolph von Morlot)
Date:  28 Nov [1844]
Classmark:  Burgerbibliothek Bern, Bern, Switzerland
Letter no:  DCP-LETT-794

To J. D. Hooker   [2 December 1844]

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Summary

Instructions for JDH’s trip to Down.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [2 Dec 1844]
Classmark:  DAR 114: 21
Letter no:  DCP-LETT-796
Document type
letter (74)
Author
Darwin, C. R.disabled_by_default
Date
1844disabled_by_default
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05 (2)
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