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DCP-LETT-5995

From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
7 Mar 1868
Source of text:
DAR 86: A21–4
Summary:

Various facts about birds: pairing, finding new mates, protective coloration, polygamy, sexual differences.

Contributor:
Darwin Correspondence Project
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DCP-LETT-6005

From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
11 Mar 1868
Source of text:
DAR 84.1: 53–6
Summary:

Courtship of goldfinches. Male display. [See Descent 2: 95.]

Contributor:
Darwin Correspondence Project
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DCP-LETT-6016

From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
16 Mar 1868
Source of text:
DAR 84.1: 57–60
Summary:

Sexual selection of pigeons, ducks;

polygamous birds.

Contributor:
Darwin Correspondence Project
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DCP-LETT-6041

From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
23 Mar 1868
Source of text:
DAR 84.1: 61–4
Summary:

Relates a variety of facts about sexual selection in birds. [See Descent 2: 104–5.]

Contributor:
Darwin Correspondence Project
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DCP-LETT-6046

From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
24 Mar 1868
Source of text:
DAR 84.1: 65–8
Summary:

Experiments to test Wallace’s theory that brightly coloured caterpillars are rejected by birds. [See Descent 1: 417.]

Contributor:
Darwin Correspondence Project
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DCP-LETT-6056

From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
[26] Mar 1868
Source of text:
DAR 86: C5–9
Summary:

Proportions of sexes in birds as reported by bird-catchers.

Contributor:
Darwin Correspondence Project
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DCP-LETT-6093

From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
5 Apr 1868
Source of text:
DAR 181: 74
Summary:

George Rolleston’s son was born with a scar on his knee exactly where GR cut himself with a knife years before his marriage. Gives several other examples of inherited mutilation.

Contributor:
Darwin Correspondence Project

DCP-LETT-6130

From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
20 Apr 1868
Source of text:
DAR 181: 76
Summary:

Instinct in birds; nest-building.

Inheritance of acquired characters.

Contributor:
Darwin Correspondence Project

DCP-LETT-6145

From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
28 Apr – 4 May 1868
Source of text:
DAR 181: 77
Summary:

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

[CD’s notes are for his reply, 6165.]

Contributor:
Darwin Correspondence Project

DCP-LETT-6152

From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
[14 Apr 1868]
Source of text:
DAR 84.1: 88–9
Summary:

Starlings find new mates readily. Nesting in threes common.

Recognition of song by birds.

Contributor:
Darwin Correspondence Project
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DCP-LETT-6226

From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
3 June 1868
Source of text:
DAR 181: 78
Summary:

Plumage of canaries; changes in plumage with successive moults.

Contributor:
Darwin Correspondence Project

DCP-LETT-6249

From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
[before 18 June 1868]
Source of text:
DAR 84.1: 141–2
Summary:

Coloration of linnets.

Sexual behaviour of black hen bullfinch.

Contributor:
Darwin Correspondence Project
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DCP-LETT-6723

From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
[1–13] May 1869
Source of text:
DAR 181: 79
Summary:

South Down sheep: variability in colouring and patterning of lambs compared with constancy of adult coat.

Contributor:
Darwin Correspondence Project

DCP-LETT-6746

From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
13 May [1869]
Source of text:
DAR 148: 321
Summary:

Comments on paper by JJW ["On insects and insectivorous birds", Trans. R. Entomol. Soc. Lond. (1869): 21–6]. JJW’s verification of A. R. Wallace’s suggestion regarding inheritance is quite a discovery.

Contributor:
Darwin Correspondence Project

DCP-LETT-6753

From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
20 May [1869]
Source of text:
DAR 148: 322
Summary:

Asks for information about male birds migrating before females.

Contributor:
Darwin Correspondence Project

DCP-LETT-6759

From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
27 May [1869]
Source of text:
DAR 148: 323
Summary:

Thanks for information about bird migration.

Comments on canary hybridisation.

Contributor:
Darwin Correspondence Project

DCP-LETT-6763

From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
June 1869
Source of text:
DAR 181: 80
Summary:

Loss of juvenile colouring in South Down sheep.

Contributor:
Darwin Correspondence Project

DCP-LETT-6810

From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
1 July [1869]
Source of text:
DAR 148: 324
Summary:

"My health got so bad I could do nothing at Down".

Gives information about migration of male and female birds.

Contributor:
Darwin Correspondence Project

DCP-LETT-7137

From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
17 Mar 1870
Source of text:
DAR 181: 81
Summary:

Describes the unusual appearance of a horse whose mother had previously borne a foal by a quagga. The effect of one mating on the subsequent pregnancy of another mating is explained by JJW using Pangenesis.

Contributor:
Darwin Correspondence Project

DCP-LETT-7247

From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
27 June 1870
Source of text:
DAR 181: 82
Summary:

On behaviour of birds when frightened and when threatening.

Purple Cytisus grafted onto yellow stock produces some yellow flowers.

Mutations in rabbits.

Cites case of variegated leaf form of one plant apparently spreading to a neighbour.

Contributor:
Darwin Correspondence Project
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