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To Ernst Dieffenbach   19 July [1843]

Summary

Says Colburn will allow German publisher to use copperplate and woodcuts [for Journal of researches]. Has been delayed in corrections owing to death of a relative [Josiah Wedgwood II].

Author:  Charles Robert Darwin
Addressee:  Ernst Dieffenbach
Date:  19 July [1843]
Classmark:  Historical Society of Pennsylvania (Gratz collection, case 12, box 7)
Letter no:  DCP-LETT-682

From R. B. Hinds   19 July [1843]

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Summary

CD will be gratified to learn that RBH has recognised a species of Cactornis as a native of Bow Island [Hao, Tuamotu Archipelago].

Author:  Richard Brinsley Hinds
Addressee:  Charles Robert Darwin
Date:  19 July [1843]
Classmark:  DAR 205.3: 276
Letter no:  DCP-LETT-683

To G. R. Waterhouse   [26 July 1843]

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Summary

Classification consists of grouping beings according to descent from common stocks. Analogies are resemblances between forms not inherited from common stocks. Neither number of species nor grade of organisation should be considered in classification. Admits that caution is necessary in admitting a few species to form a group of rank equal to one containing many species.

Author:  Charles Robert Darwin
Addressee:  George Robert Waterhouse
Date:  [26 July 1843]
Classmark:  DAR 185: 68
Letter no:  DCP-LETT-684

To G. R. Waterhouse   [31 July 1843]

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Summary

Has no objection to uniting Monotremata and other marsupials but would object to doing so solely on ground that Monotremata consists of only two species. Members of a natural group need not share common character so long as they are linked with those which do. Believes that if every organism that ever lived were collected, a perfect series would be presented. What are reasons that unite Aptera and Diptera?

Author:  Charles Robert Darwin
Addressee:  George Robert Waterhouse
Date:  [31 July 1843]
Classmark:  DAR 185: 69
Letter no:  DCP-LETT-685

From G. R. Waterhouse   [c. 2 August 1843]

Summary

Discusses classification of animals. Degree of affinity different for different taxonomic groups. Discusses affinity of Ornithorhynchus or Echidna to reptiles.

Brain of whale is highly developed; on differences among brains of Quadrumana.

Author:  George Robert Waterhouse
Addressee:  Charles Robert Darwin
Date:  [c. 2 Aug 1843]
Classmark:  DAR 181: 12
Letter no:  DCP-LETT-686

From J. S. Henslow   [5 August 1843]

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Summary

Calls CD’s attention to an article about William Herbert’s hybrid Narcissus.

Author:  John Stevens Henslow
Addressee:  Charles Robert Darwin
Date:  [5 Aug 1843]
Classmark:  DAR 205.7: 282
Letter no:  DCP-LETT-687

From G. R. Waterhouse   9 August 1843

Summary

Explains what he means when he attempts a "natural classification", defining his words and using man as a standard; gives examples. Classification of Aptera and Diptera.

Discusses his discharge from the Zoological Society. Is to see Robert Brown about the British Museum position.

Author:  George Robert Waterhouse
Addressee:  Charles Robert Darwin
Date:  9 Aug 1843
Classmark:  DAR 181: 13
Letter no:  DCP-LETT-688

To Ernst Dieffenbach   15 August [1843]

Summary

CD sends off his notes [corrections and additions to his Journal of researches] which he hopes ED will introduce [in German translation].

Author:  Charles Robert Darwin
Addressee:  Ernst Dieffenbach
Date:  15 Aug [1843]
Classmark:  J. A. Stargardt (dealers) (Catalogue 574 11–13 November 1965)
Letter no:  DCP-LETT-689

From John Lindley   [before 2 September 1843]

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Summary

Much interested in CD’s communication [about W. Kemp] and seeds sent; does not know the species; has sent seeds to Henslow.

Describes a monstrous plant found near Ely.

Author:  John Lindley
Addressee:  Charles Robert Darwin
Date:  [before 2 Sept 1843]
Classmark:  DAR 50: A21–2
Letter no:  DCP-LETT-690

To J. S. Henslow   [2 September 1843]

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Summary

Tells how W. Kemp found the seeds of Atriplex, which Lindley sent to JSH for identification.

Asks about monstrous plant mentioned by Lindley [see 690].

Author:  Charles Robert Darwin
Addressee:  John Stevens Henslow
Date:  [2 Sept 1843]
Classmark:  DAR 93: A8–10
Letter no:  DCP-LETT-691

To William Kemp   [8 September 1843]

Summary

Seeds sent by Kemp have germinated and been identified by Lindley as Rumex acetosella and an Atriplex which has been sent on to J. S. Henslow.

Author:  Charles Robert Darwin
Addressee:  William Kemp
Date:  [8 Sept 1843]
Classmark:  Cambridge University Library (MS Add. 10252/23) (gift of Ruth Cramond and David Cramond)
Letter no:  DCP-LETT-691F

To W. D. Fox   [4 September 1843]

Summary

Comments on his visit to N. Wales and the evidence of glaciation, of which he feels certain.

His marine theory [of the parallel roads of Glen Roy] has revived after Louis Agassiz’s "ice work" knocked it on the head.

Author:  Charles Robert Darwin
Addressee:  William Darwin Fox
Date:  [4 Sept 1843]
Classmark:  Christ’s College Library, Cambridge (MS 53 Fox 67)
Letter no:  DCP-LETT-692

To Gardeners’ Chronicle    [late August 1843]

Summary

Sends some examples of Gentiana that he thinks may shed light on the origin of double flowers. Since specimens grew in sterile soil their double flowering cannot be attributed to excess food. CD advances the hypothesis that some change in natural conditions causes sterility, which then causes compensatory development of petals, the organs closest in morphology to those whose functions have been checked.

Author:  Charles Robert Darwin
Addressee:  Gardeners’ Chronicle
Date:  [late Aug 1843]
Classmark:  Gardeners’ Chronicle and Agricultural Gazette, no. 36, 9 September 1843, p. 628
Letter no:  DCP-LETT-693

To John Edward Davis   15 September [1843]

Summary

Thanks him for specimens collected.

Comments on JED’s voyage [on H.M.S. Terror, 1839–43].

Mentions activities of old Beagle crew.

Author:  Charles Robert Darwin
Addressee:  John Edward Davis
Date:  15 Sept [1843]
Classmark:  DAR 143: 374
Letter no:  DCP-LETT-695

To Charles Lyell   [15 or 22 September 1843]

Summary

Mentions expected birth of child [Henrietta Emma].

BAAS meeting.

Comments on letters from G. R. Waterhouse and William Lonsdale.

Describes survival of apparently "fossil" seeds sent by W. Kemp.

Is at work on MS [of Volcanic islands].

Author:  Charles Robert Darwin
Addressee:  Charles Lyell, 1st baronet
Date:  [15 or 22] Sept 1843
Classmark:  American Philosophical Society (Mss.B.D25.32)
Letter no:  DCP-LETT-696

To S. P. Woodward   29 [September 1843]

Summary

Says he will call tomorrow to examine indicated specimens and books at Geological Society.

Author:  Charles Robert Darwin
Addressee:  Samuel Pickworth Woodward
Date:  29 [Sept 1843]
Classmark:  The British Library (Add MS 42579: 228–9)
Letter no:  DCP-LETT-697

To Ernst Dieffenbach   2 October 1843

Summary

On ED’s planned edition [German] of CD’s Journal of researches.

Informs him of his forthcoming volume, Volcanic islands.

"I am well acquainted with your paper on Chatham Island ["An account of the Chatham Islands", J. R. Geogr. Soc. 11: 195–215], & … those passages on the very curious fact of the apparent specific differences of the birds there & at New Zealand".

Thanks ED for recognition of his "small labours in Natural History… . praise from men, like yourself, is the only, though quite sufficient, reward I ever expect or wish to obtain for my works. – I have lately had the extreme satisfaction of hearing that Hooker speaks highly of the accuracy … of my statements". Refers to Humboldt and Owen.

Author:  Charles Robert Darwin
Addressee:  Ernst Dieffenbach
Date:  2 Oct 1843
Classmark:  J. A. Stargardt (dealers) (Catalogue 574 11–13 November 1965)
Letter no:  DCP-LETT-698

From William Kemp   2 October 1843

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Summary

Describes germination of seeds found in sand-pit and the geological setting of the sand-pit.

Postulates existence of ancient lake along the course of the River Tweed. Notes evidence of glaciation.

Author:  William Kemp
Addressee:  Charles Robert Darwin
Date:  2 Oct 1843
Classmark:  DAR 50: A8–11
Letter no:  DCP-LETT-699

To J. S. Henslow   [before 7 October 1843]

Summary

Has seen fields of clover near Down affected with clover dodder.

Author:  Charles Robert Darwin
Addressee:  John Stevens Henslow
Date:  [before 7 Oct 1843]
Classmark:  Gardeners’ Chronicle, 7 October 1843, p. 694
Letter no:  DCP-LETT-699F

To Syms Covington   7 October 1843

Summary

A new ear trumpet has been sent to SC as a present.

Sends news of his publications, health, and other developments since SC left for Australia.

Author:  Charles Robert Darwin
Addressee:  Syms Covington
Date:  7 Oct 1843
Classmark:  Sydney Mail, 9 August 1884, p. 254
Letter no:  DCP-LETT-700
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