Minneapolis: University of Minnesota, (1962). Hardcover first edition - A book in which the focus has moved to the philosophy behind the physical sciences. Includes essays by Hilary Putnam (The Analytical and the Synthetic), Carl G. Hempel, Michael Scriven (Explanations, Predictions and Laws), Wilfrid Sellars (Time and the World Order), P. K. Feyerabend, May Brodbeck, William W. Rozeboom, Adolf Grunbaum and Grover Maxwell (The Onotological Status of Theoretical Entities & The Necessary and the Contingent.) Name and subject index. xv, 628 pp.