Abstract
Papers by Hempel, Sellars, Caspari, Grünbaum and Feyerabend are included in this new series of lectures in the philosophy of science given at the University of Pittsburgh. Hempel defends his theory of historical explanation against recent critics; Sellars' exciting paper is the best introduction to the philosophic viewpoint that he has developed during the past fifteen years; Grünbaum argues that the problem of the nature of time belongs to physics; and Feyerabend surveys the present state of philosophic problems of quantum physics. All the lectures are excellent, though little new ground is broken. Carefully edited and well designed.--R. J B.