Co-published with the Center for Philosophy of Science, this is the fourth volume in the series CPS Publications in the Philosophy of Science. Contents: Preface, Adolf Grunbaum; Introduction, Robert G. Colodny; Part I Mind: Thinking by Computers, Herbert A. Simon; Scientific Discovery and the Psychology of Problem Solving, Herbert A. Simon; Meaning and Scientific Change, Dudley Shapere; Why-Questions, Sylvain Bromberger; Recent Problems of Induction, Carl G. Hempel; The Foundations of Scientific Inference, Wesley C. Salmon; The Physiognomy of Physics, Joseph T. Clark, S.J.; Science and Some Other Components of Intellectual Culture, Joseph T. Clark, S.J.; Part II Cosmos: Cosmic Processes and the Nature of Time, Thomas Gold; The Philosophical Legacy of the Quantum Theory, Henry Margenau; Index of Names; Index of Topics.