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）
Douglas Greenberg (EDT)/ Stanley N. Katz (EDT)/ Douglas Greenberg/ American Council of Learned Societies (COR)
（1）
John Arthur Garraty (EDT)/ Mark C. Carnes (EDT)/ American Council of Learned Societies (COR)
（1）
Paul R. Betz (EDT)/ Mark C. Carnes (EDT)/ American Council of Learned Societies (COR)/ John Arthur Garraty (EDT)
（1）
