The Foundations of Science and the Concepts of Psychology and Psychoanalysis was first published in 1956. Minnesota Archive Editions uses digital technology to make long unavailable books once again accessible, and are published unaltered from the original University of Minnesota Press editions. This first volume of Minnesota Studies in the Philosophy of Science presents some of the relatively more consolidated research of the Minnesota Center for Philosophy of Science. The work of the Center, which was established in 1953 through a grant from the Louis W. and Maud Hill Family Foundation, has so far been devoted largely to the philosophical, logical, and methodological problems of psychology. Some of the twelve papers in this volume are concerned with broad philosophical foundations; others consider specific problems of method or interpretation. The contributors, some of whom are represented in the authorship of more than one paper, are Herbert Feigl, director of the Center; Rudolf Carnap; B.F. Skinner; Michael Scriven; Albert Ellis; Antony Flew; L. J. Cronbach; Paul E. Meehl; R. C. Buck; and Wilfrid Sellars.