From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
6 July 1875
Source of text:
DAR 181: 85
Summary:
Yellow flowers occurring on a purple Cytisus grafted onto a yellow stock.
Contributor:
Darwin Correspondence Project
From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
7 July 1875
Source of text:
DAR 181: 86
Summary:
Yellow and purple flowers occur on plant grafted with Cytisus purpureus, but only on separate racemes. Only yellow blooms seed.
Contributor:
Darwin Correspondence Project
From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
9 July 1875
Source of text:
DAR 181: 87
Summary:
Sends CD some of the Cytisus, which has produced yellow flowers on a purple graft.
Contributor:
Darwin Correspondence Project
From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
27 Dec 1881
Source of text:
DAR 148: 467
Summary:
Discusses mule’s resemblance to parents.
Contributor:
Darwin Correspondence Project
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
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
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
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
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
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
From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
31 Mar 1868
Source of text:
DAR 46.1: 98–101, DAR 84.1: 69–70
Summary:
Sexual behaviour of chaffinches.
Numbers of female linnets in September.
His experiments on brightly coloured larvae [as food], testing A. R. Wallace’s theory.
His observations of a rookery make him wonder whether it may not be more difficult than we think for birds to pair.
Contributor:
Darwin Correspondence Project
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
From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
16 Apr 1868
Source of text:
DAR 84.1: 71–2, 140, DAR 181: 75
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.
Contributor:
Darwin Correspondence Project
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
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
From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
[4–7] May 1868
Source of text:
DAR 84.1: 75–6, DAR 86: C3–4
Summary:
Proportion of sexes in ruffs [see Descent 1: 306].
Colour display in linnets, songbirds. Courtship display of Australian pigeon at zoo.
Contributor:
Darwin Correspondence Project
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
From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
18 May 1868
Source of text:
DAR 84.1: 81–2, DAR 86: A37–8
Summary:
Answers CD’s question on whether any female birds regularly sing.
Contributor:
Darwin Correspondence Project
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
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