From:
Charles Robert Darwin
To:
Charles Lyell, 1st baronet
Date:
21 June [1859]
Source of text:
American Philosophical Society (Mss.B.D25.165)
Summary:
Discusses S. S. Haldeman’s paper ["Enumeration of the recent freshwater Mollusca", Boston J. Nat. Hist. 4 (1844): 468–84].
Centres of species origin.
Describes his corrections of Origin.
Contributor:
Darwin Correspondence Project