Thomas S. Kuhn: Scientific knowledge as historical product -- Abstract for "The Presence of Past Science (The Shearman Memorial Lectures)" -- Thomas S. Kuhn: The presence of past science (The Shearman Memorial Lectures). Lecture I: Regaining the past ; Lecture II: Portraying the past ; Lecture III: Embodying the past -- Abstract for The Plurality of Worlds: An Evolutionary Theory of Scientific Development -- Thomas S. Kuhn: The Plurality of Worlds: An Evolutionary Theory of Scientific Development. The problem ; Scientific knowledge as historical product ; Breaking into the past ; Taxonomy and incommensurability -- A world of kinds. Biological prerequisites to linguistic description: track and situations ; Natural kinds: how their names mean ; Practices, theories, and artefactual kinds.