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From J. J. Weir   16 April 1868

Summary

Describes a curious litter of rabbits.

Pairing of rooks, courtship of golden pheasant.

Behaviour of finch hybrids.

Seasonal coloration of birds; bright plumage results from sexual selection.

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  16 Apr 1868
Classmark:  DAR 84.1: 71–2, 140, DAR 181: 75
Letter no:  DCP-LETT-6125

To J. J. Weir   18 April [1868]

Summary

Discusses rapid replacement of mates among birds. "I begin to think that the pairing of birds must be as delicate and tedious an operation as the pairing of young gentlemen and ladies. If I can convince myself that there are habitually many unpaired birds it will be a great aid to me in sexual selection". Notes rivalry of singing birds.

Heard from George Rolleston of the inherited effects of an eye injury.

Disagrees with A. R. Wallace’s idea "that birds learn to make their nests from having seen them whilst young" ["The philosophy of birds’ nests", Intellect. Obs. 11 (1867): 413–20].

Author:  Charles Robert Darwin
Addressee:  John Jenner Weir
Date:  18 Apr [1868]
Classmark:  Duke University, Rubenstein Rare Book and Manuscript Library (RL.10387)
Letter no:  DCP-LETT-6128

From J. J. Weir   20 April 1868

Summary

Instinct in birds; nest-building.

Inheritance of acquired characters.

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  20 Apr 1868
Classmark:  DAR 181: 76
Letter no:  DCP-LETT-6130

From J. J. Weir   28 April – 4 May 1868

Summary

Observations on root-climbers. Variegated and arborescent varieties of Hedera.

[CD’s notes are for his reply, 6165.]

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  28 Apr – 4 May 1868
Classmark:  DAR 181: 77
Letter no:  DCP-LETT-6145

From J. J. Weir   [4–7] May 1868

Summary

Proportion of sexes in ruffs [see Descent 1: 306].

Colour display in linnets, songbirds. Courtship display of Australian pigeon at zoo.

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  [4–7] May 1868
Classmark:  DAR 84.1: 75–6, DAR 86: C3–4
Letter no:  DCP-LETT-6151

From J. J. Weir   [14 April 1868]

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Summary

Starlings find new mates readily. Nesting in threes common.

Recognition of song by birds.

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  [14 Apr 1868]
Classmark:  DAR 84.1: 88–9
Letter no:  DCP-LETT-6152

To J. J. Weir   7 May [1868]

Summary

Thanks JJW for his great assistance.

Discusses sexual selection in birds.

Sends queries on secondary sexual characteristics of birds.

Has often marvelled at the different growth of the flowering and creeping branches of ivy.

Author:  Charles Robert Darwin
Addressee:  John Jenner Weir
Date:  7 May [1868]
Classmark:  American Philosophical Society (Mss.B.D25.)
Letter no:  DCP-LETT-6165

From J. J. Weir   18 May 1868

Summary

Answers CD’s question on whether any female birds regularly sing.

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  18 May 1868
Classmark:  DAR 84.1: 81–2, DAR 86: A37–8
Letter no:  DCP-LETT-6181

To J. J. Weir   30 May [1868]

Summary

Glad to have JJW’s opinion on nest-building. Wallace’s view [that skill is learned] is opposed to many facts.

Asks JJW about birds and their behaviour.

Wants information on the first plumage of different breeds of canaries.

Author:  Charles Robert Darwin
Addressee:  John Jenner Weir
Date:  30 May [1868]
Classmark:  University of Chicago Library, Special Collections Research Center (Joseph Halle Schaffner collection box 1, folder 2)
Letter no:  DCP-LETT-6215

From J. J. Weir   3 June 1868

Summary

Plumage of canaries; changes in plumage with successive moults.

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  3 June 1868
Classmark:  DAR 181: 78
Letter no:  DCP-LETT-6226

To J. J. Weir   5 June 1868

Summary

Sorry JJW cannot visit.

Will go to sea-side for five weeks at end of July.

Does Vidua have double annual moult? [See Descent 2: 181.]

Author:  Charles Robert Darwin
Addressee:  John Jenner Weir
Date:  5 June 1868
Classmark:  DAR 148: 317; Duke University, Rubenstein Rare Book and Manuscript Library (RL.10387)
Letter no:  DCP-LETT-6232

From J. J. Weir   [before 18 June 1868]

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Summary

Coloration of linnets.

Sexual behaviour of black hen bullfinch.

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  [before 18 June 1868]
Classmark:  DAR 84.1: 141–2
Letter no:  DCP-LETT-6249

To J. J. Weir   18 June [1868]

Summary

CD thanks JJW for letter about the crimson breast of linnets

and the fate of a pugnacious female bullfinch.

Refers to JJW’s pointing out the number of Jenners and Weirs who have been naturalists, and cites some writings by men of those families about striking cases of birds.

Author:  Charles Robert Darwin
Addressee:  John Jenner Weir
Date:  18 June [1868]
Classmark:  American Philosophical Society (Mss.B.D25.)
Letter no:  DCP-LETT-6250

To J. J. Weir   1 September 1868

Summary

Invites JJW to visit Down. Will try to get A. R. Wallace and H. W. Bates also.

Author:  Charles Robert Darwin
Addressee:  John Jenner Weir
Date:  1 Sept 1868
Classmark:  DAR 148: 319
Letter no:  DCP-LETT-6343

From J. J. Weir   [before 17] October 1868

Summary

Both sexes of Crossoptilon auritum (eared pheasant) obtained the red cheeks the first year.

Coloration of the linnet.

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  [before 17] Oct 1868
Classmark:  DAR 86: A36, 53; DAR 84.1: 139
Letter no:  DCP-LETT-6421

To J. J. Weir   17 October 1868

Summary

Enjoyed JJW’s visit.

Interested in changes in plumage of pheasants.

Still at work on sexual selection in birds.

Author:  Charles Robert Darwin
Addressee:  John Jenner Weir
Date:  17 Oct 1868
Classmark:  DAR 148: 320
Letter no:  DCP-LETT-6422

To J. J. Weir   [before 18 May 1868]

Summary

CD cannot remember whether correspondent believed the wing that Gallus bankiva opens and scrapes before the female, is ornamented. He fears it is not.

Author:  Charles Robert Darwin
Addressee:  John Jenner Weir
Date:  [before 18 May 1868]
Classmark:  American Philosophical Society (Mss.B.D25.)
Letter no:  DCP-LETT-6537
Document type
letter (37)
Author
Addressee
Correspondent
Darwin, C. R. (37)
Weir, J. J.[X]
Date
1868
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04 (8)
05 (6)
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10 (2)
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