 Apart from guest professorships in Berkeley (1946 and 1953), at Columbia University (1950) and at the University of Hawai’i (1958), Feigl had research stays in Mexico, Australia, and Austria. He was president of the American Philosophical Association and vice president of the American Association for the Advancement of Science. Among the major works during his time in the United States are writings on methodology, on the scientific realism debate and a couple of contributions to the mind-body problem, the most well-known of which is the essay “The ‘Mental’ and the ‘Physical’” (1958). After his retirement in 1971, Feigl was still active as an organizer of philosophical discussions at his private home. He died of cancer on June 1, 1988, in Minneapolis.