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From:
Jean Louis Rodolphe (Louis) Agassiz
To:
Charles Robert Darwin
Date:
6 July 1869
Source of text:
DAR 159: 10
Summary:

Introduces his son Alexander; believes CD will find him "more tractable" on certain questions than LA himself is.

Contributor:
Darwin Correspondence Project
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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