5Richard Hofstadter,The Age of Reform:From Bryan to F.D.R,Alfred A.Knopf,pp.131-214.
6Richard Hofstadter,"The Tariffic Issue on the Eve of the Civil War" The American Historical Review,Vol.44,No.1(Oct.,1938),p.50.
7Hofstadter to Woodward,[May1963],box 25,Hofstadter Papers,in Robert M.Collinc,"The Originality Trap:Richard Hofstadter on Populism",The Journal of American History.vol.76.No.1.June 1989,p.161.
8Richard Hofstadter,The Progressive Historians:Turner,Beard,Parrington,The University of Chicago Press,1968,p.443.