From:
Charles Robert Darwin
To:
Spectator
Date:
11 Jan 1873
Source of text:
Spectator , 18 January 1873, p. 76.
Summary:
Discusses two factors possibly causing modification of body or mind of an organism; habit and direct action of external conditions on the one hand, and selection, natural or artificial, on the other; considers their relative importance.
Contributor:
Darwin Correspondence Project