From:
Charles Robert Darwin
To:
Georg Michael Asher
Date:
28 Oct 1879
Source of text:
The New York Public Library. Astor, Lenox and Tilden Foundations. The Henry W. and Albert A. Berg Collection of English and American Literature.
Summary:
Cannot answer questions on origin of instinct, sociology, etc. Suggests references in Origin and Descent.
Contributor:
Darwin Correspondence Project