From:
John Robert Goodwin Barr
To:
George Cupples
Date:
[after 11 May 1868?]
Source of text:
DAR 85: B27
Summary:
Sends replies on dogs – sexual differences and preferences.
Contributor:
Darwin Correspondence Project
From:
Robert Elliot
To:
George Cupples
Date:
4 June 1869
Source of text:
DAR 86: A30–1, A62
Summary:
Proportion of sexes in (new-born) lambs equal, but males more likely to die.
Contributor:
Darwin Correspondence Project
From:
William Aitchison
To:
George Cupples
Date:
16 June 1869
Source of text:
DAR 86: A54–5
Summary:
Statistics on proportion of sexes in lambs.
Contributor:
Darwin Correspondence Project
From:
Thomas Russell
To:
George Cupples
Date:
18 June 1869
Source of text:
DAR 86: 56–7
Summary:
On the proportion of sexes in lambs.
Contributor:
Darwin Correspondence Project
From:
Robert Elliot
To:
George Cupples
Date:
21 June 1869
Source of text:
DAR 86: A60–1
Summary:
Proportion of sexes in lambs, before castration.
Contributor:
Darwin Correspondence Project
From:
William Aitchison
To:
George Cupples
Date:
25 June 1869
Source of text:
DAR 86: A63–4
Summary:
Statistics on proportion of sexes of lambs.
Contributor:
Darwin Correspondence Project
From:
Robert Elliot
To:
George Cupples
Date:
25 June 1869
Source of text:
DAR 86: A65
Summary:
Number of lambs born not kept. Counted only at time of castration.
Proportion of sexes in cattle and rats.
Contributor:
Darwin Correspondence Project
From:
William Aitchison
To:
George Cupples
Date:
30 June 1869
Source of text:
DAR 86: 66
Summary:
WA explains the figures he sent GC. In his experience female lambs at the time of castration outnumber the males. [Robert] Elliot differs.
Contributor:
Darwin Correspondence Project
From:
James Oliver
To:
George Cupples
Date:
3 July 1869
Source of text:
DAR 86: 67
Summary:
Information about sexes of sheep at time of castration. Mortality of male lambs higher than that of females.
Contributor:
Darwin Correspondence Project
From:
John Graham
To:
George Cupples
Date:
6 July 1869
Source of text:
DAR A86: 68–9
Summary:
Responds to questions about sex ratios at birth and mortality in either sheep or cattle before eighteen months.
Contributor:
Darwin Correspondence Project
From:
Allan Cunningham Pagan
To:
George Cupples
Date:
16 July 1869
Source of text:
DAR 85: B54–5
Summary:
Appends an eight-year list of lambs for CD’s private information.
Contributor:
Darwin Correspondence Project
From:
James Rait
To:
George Cupples
Date:
20 July 1869
Source of text:
DAR 86: 70–1
Summary:
Responds to questions about sex ratios at birth and mortality in either sheep or cattle.
Contributor:
Darwin Correspondence Project