1. 1854) (developing scientific arguments for polygenesis, or view that different races had distinct origins and were of different species);George M Frederickson;TYPES OF MANKIND,1971
2. Social Science and Segregation Before Brown, 1985 DUKE L;Herbert Hovenkamp;J
3. The debate over "progressivism;A Edwin R;tax policy actually antedated Seligman. See HERBERT HOVENKAMP, THE OPENING OF AMERICAN LAW: NEOCLASSICAL LEGAL THOUGHT,1908