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