Search: 1870-1879 in date 
Campbell, G. D. in addressee 
Sorted by:

Showing 11 of 1 item

From:
Charles Robert Darwin
To:
George Douglas Campbell, 8th duke of Argyll
Date:
23 Sept 1878
Source of text:
Nature , 5 March 1891, p. 415
Summary:

Doubts that "the same well-characterized species should be produced in two distinct countries, or at two distinct times".

Contributor:
Darwin Correspondence Project