This volume constitutes the Proceedings of the Third International Congress for Logic, Methodology and Philosophy of Science. The Congress was held at the Grand Hotel Krasnapolsky, Amsterdam, from August 25 to September 2, 1967, under the joint of the Division of Logic, Methodology and Philosophy of Science of the International Union of History and Philosophy of Science. The Congress took place in the Netherlands at the invitation of the Nederlandse Vereniging voor Logica en Wijsbegeerte der Exacte Wet enschap pen
