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From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
22 Feb [1867]
Source of text:
The British Library (Loan MS 10 no 13)
Summary:

Observations on orchid self-sterility.

Wants information on characters that may have originated through sexual selection in lower animals.

Encloses queries on expression.

Contributor:
Darwin Correspondence Project