Introductory Remarks to the Symposium on Hegel and the Sciences.- The Scholar, the Liberal Ideal, and the Philosophy of Science.- I. The Sciences.- Conceptual Analysis and Scientific Theory in Hegel's Philosophy of Nature (with Special Reference to Hegel's Optics).- A Comment on Buchdahl's Paper.- The Chemical System of Substances, Forces and Processes in Hegel's Philosophy of Nature and the Science of His Time.- Hegel and the Celestial Mechanics of Newton and Einstein.- The Hegelian Treatment of Biology and Life.- More Comments on the Place of the Organic in Hegel's Philosophy of Nature.- Hegel and the Organic View of Nature.- Hegel's Philosophical Understanding of Illness.- On Hegel's Significance for the Social Sciences.- Hegel's Conception of Psychology.- II. Philosophy and Methodology of Science.- The Dialectical Structure of Scientific Thinking.- Is the Progress of Science Dialectical?.- Some 'Moments' of Hegel's Relation to the Sciences.- Hegel's 'Deduction of the Concept of Science'.- Theory and Praxis and the Beginning of Science.- The First American Interpretation of Hegel in J. B. Stallo's Philosophy of Science.- III. Dialectics and Logic.- Hegel's Logic from a Logical Point of View.- The Dynamics of Hegelian Dialectics, and Non-Linearity in the Sciences.- Mathematical Dialectics, Scientific Logic and the Psychoanalysis of Thinking [Comment on Kosok and Gauthier].- Comments on Kosok's Interpretation of Hegel's Logic.- Bibliographical Note.- Index of Names.