From:
Charles Robert Darwin
To:
Friedrich Ludwig
Date:
16 Feb 1879
Source of text:
American Philosophical Society (Mss.B.D25.)
Summary:
Sends thanks to the Masters for congratulations on his birthday, saying "the approbation & sympathy of one’s fellow-workers in the acquisition of knowledge is the highest possible reward which any man ought to desire".
Contributor:
Darwin Correspondence Project
