From:
Charles Robert Darwin
To:
James Dwight Dana
Date:
5 Apr [1857]
Source of text:
Yale University Library: Manuscripts and Archives (Dana Family Papers (MS 164) Series 1, Box 2, folder 44)
Summary:
Asks whether Crustacea from temperate parts of the Southern Hemisphere are more strongly analogous to those in same latitudes of the Northern Hemisphere than are Arctic to Antarctic Crustacea.
Discusses astonishing finds of mammalian and reptilian remains in Purbeck beds; notes reactions of Lyell.
Has doubts about Richard Owen’s recent classification of mammals [J. Proc. Linn. Soc. Lond. (Zool.) 2 (1858): 1–37].
Works away [on Natural selection].
Asa Gray has given valuable assistance.
Contributor:
Darwin Correspondence Project