Search: letter in document-type 
1870-1879 in date 
Mansfelde, A. S. von in correspondent 
Sorted by:

Showing 11 of 1 item

From:
Alexander Siedschlag von Mansfelde
To:
Charles Robert Darwin
Date:
17 Jan 1876
Source of text:
DAR 180: 15
Summary:

Proposes an unorthodox theory of generation that explains sex determination and atavism.

Contributor:
Darwin Correspondence Project