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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

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[X]
Author
Addressee
Denny, Henry[X]
Correspondent
Date
1844
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