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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:
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
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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
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