1. Carnap, R.: 1950, ‘Empiricism, Semantics and Ontology’,Revue Internationale de Philosophie 4; reprinted in an enlarged edition ofMeaning and Necessity, and inContemporary Readings in Logical Theory, ed. by I. M. Copi and J. A. Gould, MacMillan, 1967. References to original version except when ‘reprinted version’ is specified, then toContemporary Readings.
2. Quine, W. V. O.: 1948, ‘On What There Is’,Review of Metaphysics, and inFrom A Logical Point of View, Harper Torchbooks, 1953. Page references toFrom A Logical Point of View.
3. Quine, W. V. O.: 1951, ‘On Carnap's Views on Ontology’,Philosophical Studies 2; and inThe Ways of Paradox, Random House, 1966. Page references toThe Ways of Paradox.
4. Quine, W. V. O.: 1953, ‘Logic and the Reification of Universals’, inFrom a Logical Point of View.
5. Sellars, W.: 1963, ‘Empiricism and Abstract Entities’, inThe Philosophy of Rudolf Carnap, ed. by P. A. Schilpp, Open Court, 1963; and inEssays in Philosophy and its History, Reidel, 1974.