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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
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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
thumbnail
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