Charles Darwin/ James A. Secord (EDT)
(1)
Charles Darwin;Burkhardt, Frederick (American American Council of Learned Societies),Secord, James A. (University of Cambridge),The Editors of the Darwin Correspondence Project (University of Cambridg
(1)
Charles Darwin;Burkhardt, Frederick H. (American Council of Learned Societies),Secord, James A. (University of Cambridge),The Editors of the Darwin Correspondence Project (University of Cambridge)
(1)
Charles Lyell/ James A. Secord
(1)
Nicholas Jardine (EDT)/ James A. Secord (EDT)/ E. C. Spary (EDT)
(1)
Robert Chambers/ James A. Secord
(1)