Cambridge : Harvard university press, 1946

Cambridge [England] ; New York : Cambridge University Press, 1985

Cambridge : Cambridge University Press, 2008

New York : Dover Publications, 1958

Tucson : University of Arizona Press, 1986

Boston : Houghton, Mifflin and company, 1885

Cambridge : Cambridge University Press, 2008

Princeton, New Jersey : Princeton University Press, 2013

New York, NY : Devin-Adair Co., 1957

Gainesville : University Press of Florida, 1992

Princeton, New Jersey : Princeton University Press, 2013

[Memphis] Memphis State University Press, 1973

New York, Harcourt, Brace 1959
[1st American ed.].

[Gloucester, England] : Dodo Press, 2008
[Illustrated ed.]

New York : Arno Press, A New York Times Company, 1975
Reprint edition.

Boulder : Colorado Associated University Press, 1976

Cambridge, UK ; New York : Cambridge University Press, 2008
Anniversary ed.

Cambridge ; New York, NY, USA : University of Cambridge, 1996

Philadelphia : The American Philosophical Society, 1942

Helsingfors : Stockholm : Svenska litteratursällskapet i Finland ; Atlantis, 2008