Papers of Prof Peter Guy Winch, 1936-1996, including professional correspondence; teaching notes; lecture notes and handouts; draft and proofs of articles by Winch; proof copy of The Idea of Social Science and its Relation to Philosophy, 2nd edition; papers relating to the University of Swansea including minutes of departmental meetings, 1984; papers relating to Winch's time at King's College London including papers relating to publication of Winch's Ethics and Action, 1971-1972 and Winch's inaugural lecture for the Chair of Philosophy, 1968; papers, lecture notes, correspondence, handouts and student work relating to teaching at University of Illinois, 1990-1996 and research notes on topics including social science, ethics, Ludwig Wittgenstein, logic, Baruch Spinoza, epistemology and political philosophy.