From:
Asa Gray
To:
Charles Robert Darwin
Date:
22–30 Mar 1863
Source of text:
DAR 165: 131
Summary:
Discusses the Duke of Argyll’s article on the supernatural [Edinburgh Rev. 116 (1862): 378–97].
Has heard that the Incas married their sisters; this may be worth investigating as a case of inbreeding.
Contributor:
Darwin Correspondence Project