From:
Hubert Airy
To:
Charles Robert Darwin
Date:
3 Apr 1871
Source of text:
DAR 87: 37–8
Summary:
Comments on discussion of residual organs in Descent [ch. 1].
Describes his ability to contract the platysma myoides at will.
Suggests reason for loss of voluntary movement of ears in men and monkeys.
Contributor:
Darwin Correspondence Project
