I / Symposium: Space, Time and Matter: The Foundations of Geometrodynamics.- Space, Time, and Matter: The Foundations of Geometrodynamics. Introductory Remarks.- Some Topics for Philosophical Inquiry Concerning the Theories of Mathematical Geometrodynamics and of Physical Geometrodynamics.- The Rise and Fall of Geometrodynamics.- II / Philosophical Problems of Biology and Psychology.- Elsasser, Generalized Complementarity, and Finite Classes: A Critique of His Anti-Reductionism.- Complexity and Organization.- B. F. Skinner — The Butcher, The Baker, The Behavior-Shaper.- III / Symposium: Fundamental Problems in the Concept of Randomness.- Fundamental Problems in the Concept of Randomness. Dedication to Leonard J. Savage.- Randomness and Knowledge.- Random Thoughts about Randomness.- Randomness.- IV / Historical Issues in the Philosophy of Science.- Kant, the Dynamical Tradition, and the Role of Matter in Explanation.- V / Philosophical Problems of the Social Sciences.- The Operation Called Verstehen: Towards a Redefinition of the Problem.- On Popper’s Philosophy of Social Science.- Monistic Theories of Society.- VI / Symposium: Values, Ideology and Objectivity in the Social Sciences.- The Exact Role of Value Judgments in Science.- VII / Philosophical Problems of the Physical Sciences.- A Dilemma for the Traditional Interpretation of Quantum Mixtures.- Nowness and the Understanding of Time.- VIII / Symposium: Modality and the Analysis of Scientific Propositions.- On the Usefulness of Modal Logic in Axiomatizations of Physics.- The Essential but Implicit Role of Modal Concepts in Science.- Comments on Suppes’ Paper: The Essential but Implicit Role of Modal Concepts in Science.- Bressan and Suppes on Modality.- Replies to van Fraassen’s Comments: Bressan and Suppes on Modality.- IX / Scientific Explanation.- Statistical Explanations.- The Objects of Acceptance: Competing Scientific Explanations.- X / Truth and Realism in Science.- Is Scientific Realism a Contingent Thesis?.- Realist Foundations of Measurement.- XI / Symposium: Discovery, Rationality and Progress in Science.- Rationality and Scientific Discovery.- Discovery, Rationality, and Progress in Science: A Perspective in the Philosophy of Science.- XII / Inductive Logic.- Rationality Between the Maximizers and the Satisficers.