Microfilms of the Popper papers held at Stanford University, California, including Popper's speeches and writings, correspondence, course material, subject files, biographical files, index cards with the addresses of acquaintances, and selected writings by others.

Material relating to the Ethical Movement and the Workers' Education Association (WEA), 1915-1920, comprising presscuttings, notices, reports of meetings, correspondence and pamphlets.

Address by John Wilkes to voters in Middlesex where he was standing for Parliamentary election, delievered from the Kings Bench Prison where he was imprisoned for seditious libel, 1769.

Essay by Dmitrii Pavlovich Karobko entitled "Philosophical economic manuscripts 1966-1994", [1995]

Notes containing extracts from ancient Greek philosophers' writings, in Russian [c 1941]

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.