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:
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:
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:
[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:
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:
[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
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
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
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
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
From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
4 July 1870
Source of text:
DAR 181: 83
Summary:
On mutations in rabbits.
Cytisus case is not a double graft.
Aggressive behaviour of birds of prey.
Contributor:
Darwin Correspondence Project
From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
31 July 1872
Source of text:
DAR 181: 84
Summary:
On variegated leaves; a feature not inherited consistently.
Contributor:
Darwin Correspondence Project
From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
14 Aug 1872
Source of text:
DAR 88: 177–8
Summary:
Hostility of birds toward others with same colour;
nuptial plumage.
Spiza cyanea and Spiza ciris.
Contributor:
Darwin Correspondence Project
From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
13 Nov 1873
Source of text:
DAR 88: 179–80
Summary:
Hybrid Motacilla.
Case of female duck leaving mate to pair with male of another species.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
10 July 1875
Source of text:
American Philosophical Society (Mss.B.D25.466); DAR 148: 336
Summary:
Regarding Cytisus graft with yellow flowers, CD thinks nurseryman has sold Cytisus adami to JJW’s brother in place of C. purpureus. This explains apparent "sport". [P.S. on envelope:] C. purpureus seeds freely. C. adami never does.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
5 July 1875
Source of text:
DAR 148: 334
Summary:
Discusses case of Cytisus graft described by JJW.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
14 July 1875
Source of text:
DAR 148: 337
Summary:
JJW is to think no more about mistake [regarding Cytisus graft].
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
14 Feb [1876]
Source of text:
DAR 148: 338
Summary:
Declines invitation to accompany JJW to Crystal Palace.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
29 Dec 1881
Source of text:
DAR 148: 340
Summary:
Comments on JJW’s observations on mule
and hermaphroditism in hybrid moths.
Contributor:
Darwin Correspondence Project