March 2, 1957 Mr. Eugene Davidson Yale University Press New Heven 7, Conn. Dear Mr. Davidson: Thanks for your letter of February 28. The subtitle you süggested sounds very impressive. However, it seems to the that it does not quite cover the content of my book. My suggestion would be: 1) An Inquiry into into Conflicting Conceptions of Social and Economic Evolution or 2) An Inquiry into the Interpretation of Social and Economic Evolution. What do you think? Sincerely yours