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To Henry Denny   21 July [1847]

Summary

Regrets not seeing HD at Oxford meeting [of BAAS].

He may keep duplicates of parasitic insects from CD’s collection. Lyell has collected Pediculi for HD from Negroes in North America.

Author:  Charles Robert Darwin
Addressee:  Henry Denny
Date:  21 July [1847]
Classmark:  DAR 143: 383
Letter no:  DCP-LETT-1103

To Henry Denny   23 March [1865]

Summary

Interested by HD’s information on aperea; CD had concluded that it was not the progenitor of domestic guinea-pigs.

Is unsure what HD means by "stock-dove"; properly this is Columba oenas and the domestic pigeon is C. livia.

Suggests that the Zoological Society might arrange for some specimens [unspecified] to be supplied from the Gardens.

Author:  Charles Robert Darwin
Addressee:  Henry Denny
Date:  23 Mar [1865]
Classmark:  American Philosophical Society (Mss.B.D25.120)
Letter no:  DCP-LETT-2435

To Henry Denny   17 January [1865]

Summary

Pleased to learn that HD has resumed research on Anoplura.

Are Chiloe pediculi a distinct species?

Do lice differ on different races of humans?

Is there evidence supporting Mr Marshall’s statement about Polynesian lice?

Author:  Charles Robert Darwin
Addressee:  Henry Denny
Date:  17 Jan [1865]
Classmark:  Alfred Denny Museum, University of Sheffield
Letter no:  DCP-LETT-4747F

From Henry Denny   23 January 1865

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Summary

Species of lice and the animals they infest. Different kinds of dogs, fowls, and pigeons are infested by the same species of Pediculi [see Descent 1: 219].

Author:  Henry Denny
Addressee:  Charles Robert Darwin
Date:  23 Jan 1865
Classmark:  DAR 80: B150–1
Letter no:  DCP-LETT-4753

To Henry Denny   28 January [1865]

Summary

Returns [Andrew] Murray’s paper;

especially values HD’s note that the same species of lice infect the different varieties of fowl, pigeon, and dog. Further queries about the relationship of the same species of pediculi to different domestic varieties.

Author:  Charles Robert Darwin
Addressee:  Henry Denny
Date:  28 Jan [1865]
Classmark:  Alfred Denny Museum, University of Sheffield
Letter no:  DCP-LETT-4756F

To Henry Denny   20 January [1844]

Summary

Discusses sending HD lice specimens. Asks him to check with G. R. Waterhouse.

Author:  Charles Robert Darwin
Addressee:  Henry Denny
Date:  20 Jan [1844]
Classmark:  American Philosophical Society (Mss.B.D25.37)
Letter no:  DCP-LETT-731

To Henry Denny   5 February [1844]

Summary

Dicussion of some specimens from the Beagle voyage.

Author:  Charles Robert Darwin
Addressee:  Henry Denny
Date:  5 Feb [1844]
Classmark:  Jeremy and Helen Evans (private collection)
Letter no:  DCP-LETT-734F

To Henry Denny   1 June [1844]

Summary

Sends HD a reference to human lice from Charles White 1799.

Author:  Charles Robert Darwin
Addressee:  Henry Denny
Date:  1 June [1844]
Classmark:  19th Century Shop (dealer) April 2016
Letter no:  DCP-LETT-754F

To Henry Denny   3 June [1844]

Summary

Discusses intestinal worms among humans.

Comments on origin of human races.

Author:  Charles Robert Darwin
Addressee:  Henry Denny
Date:  3 June [1844]
Classmark:  American Philosophical Society (Mss.B.D25.35)
Letter no:  DCP-LETT-755

To Henry Denny   [27 July – 10 August 1844]

Summary

Sends four packets of lice and suggests writing to Dr A. Smith, "the S. African traveller", for assistance.

Author:  Charles Robert Darwin
Addressee:  Henry Denny
Date:  [27 July – 10 Aug 1844]
Classmark:  Yale University Medical Historical Library, Harvey Cushing / John Hay Whitney Medical Library (MMS)
Letter no:  DCP-LETT-763F

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

From Henry Denny   30 October 1844

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Summary

Has never heard of species of same genus [of parasites] being found on both birds and mammals, or different genera and species being found on animals in the domestic and wild states. Implications of this for relationship of aperea and guinea-pig.

Author:  Henry Denny
Addressee:  Charles Robert Darwin
Date:  30 Oct 1844
Classmark:  DAR 205.3: 273
Letter no:  DCP-LETT-785

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
Letter no:  DCP-LETT-787
Document type
letter (13)
Author
Addressee
Correspondent
Date
1844 (8)
1847 (1)
1865 (4)
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