From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
8 Sept [1869]
Source of text:
The British Library (Loan MS 10 no 30)
Summary:
Wants observations on a Papilio to see whether ticking noise is confined to one sex.
Experiments on self-sterility.
Will send copy of his orchid paper ["Fertilisation of orchids", Collected papers 2: 138–56].
Eschscholzia when self-fertilised, produced pods.
Contributor:
Darwin Correspondence Project