Moritz Schlick, Rudolf Carnap, and Herbert Feig are the most prominent of the positivists to formulate views on the mind-body problem. (C. G. Hempel’s one-off treatment [1935] is set aside here; see Kim [2003] and Crawford [2013].) While their views differed from each other and changed over time, they were all committed to some form of scientific physicalism, though a linguistic or conceptual...