From:
John Langdon Haydon Down
To:
Charles Robert Darwin
Date:
20 Dec 1873
Source of text:
DAR 87: 61–2
Summary:
Describes an ear from a microcephalous idiot, which does not lend support to Ludwig Mayer’s view [that points on ears are mere variations; see Descent, 2d ed., pp. 15–16].
Is working on involution rather than evolution, with results confirming CD’s teaching.
Contributor:
Darwin Correspondence Project
