(f) «On the Status of Science and of Metaphysics. Two Radio Talks: (i) Kant and the Logic of Experience, (ii) The Problem of the Irrefutability of Philosophical Theories», Ratio (Oxford), 1, pp. 97-115.
(g) «Über die Möglichkeit der Erfahrungswissenschaft und der Metaphysik, Zwei Rundfunkvorträge: (i) Kant und die Möglichkeit der Erfahrungswissenschaft, (ii) Über die Nichtwiderlegbarkeit philosophischer Theorien», Ratio(Frankfurt a.M.), 2, pp. 1-16.
(i) Falsche Propheten: Hegel Marx und die Folgen, Die offene Gesellschaft und ihre Feinde, Band II, Francke Verlag, Bern.
(a) The Logic of Scientific Discovery, Hutchinson & Co., London; Basic Books Inc., New York.
(e) «The Propensity Interpretation of Probability», The British Journal for the Philosophy of Science, 10, pp. 25–42.
(g) «Woran glaubt der Westen?», in Erziehung zur Freiheit, edited by Albert Hunold, Eugen Rentsch Verlag, Stuttgart, pp. 237–262.
(к) «Critical Rationalism», in Philosophy for a Time of Crisis: An Interpretation with Key Writings by Fifteen Great Modern Thinkers, edited by Adrienne Koch, Dutton & Co., New York, pp. 262–275.
(d) «On the Sources of Knowledge and of Ignorance», Proceedings of the British Academy,46, pp. 39–71.
(d) «Selbstbefreiung durch das Wissen», in Der Sinn der Geschichte, edited by Leonhard Reinisch, С. H. Beck Verlag, Munich, 1961, pp. 100–116. (English translation [1968 (t)].)
(f) On the Sources of Knowledge and of Ignorance, Annual Philosophical Lecture, Henriette Hertz Trust, British Academy, Oxford University Press, London.
(h) «Philosophy and Physics», Atti del XII Congresso Internazionale di Filosofia, 2, G. C. Sansoni Editore, Florence, pp. 367–374.
(j) Evolution and the Tree of Knowledge, Herbert Spencer Lecture, delivered on October 30th, 1961, in Oxford. (Now Chapter 7 of [1972(a)].)
(c) The Open Society and Its Enemies, fourth English edition, Routledge & Kegan Paul, London.
(d) The Open Society and Its Enemies, Routledge Paperbacks, Routledge & Kegan Paul, London.
(f) «Julius Kraft 1898–1960», Ratio (Oxford),4, pp. 2-10.
(k) «Die Logik der Sozialwissenschaften», in Kölner Zeitschrift für Soziologie und Sozialpsychologie, Heft, 2, pp. 233–248. (See also [1969(m)] and [1976(b)].)
(a) Conjectures and Refutations: The Growth of Scientific Knowledge, Routledge & Kegan Paul, London; Basic Books Inc., New York.
(h) «Science: Problems, Aims, Responsibilities», Federation Proceedings(Baltimore), 22, pp.961–972.
(l) The Open Society andlts Enemies, Princeton University Press, Princeton, N. J.
(m) The Open Society and Its Enemies, The Academy Library, Harper & Row, New York and Evanston.
(a) The Poverty of Historicism, The Academy Library, Harper & Row, New York and Evanston.
(f) «Time’s Arrow and Entropy», Nature, 207, pp. 233–234.
(a) The Open Society and Its Enemies, fifth English edition, Routledge Paperbacks, Routledge & Kegan Paul, London.
(e) Logik der Forschung, second edition, J. С. B. Mohr (Paul Siebeck), Tübingen.
(f) Of Clouds and Clocks: An Approach to the Problem of Rationality and the Freedom of Man, Washington University Press, St. Louis, Missouri. (Now in [1972(a)].)
(g) «A Theorem on Truth-Content», Mind, Matter and Method: Essays in Philosophy and Science in Honor of Herbert Feigl, edited by Paul K. Feyerabend and Grover Maxwell, University of Minnesota Press, Minneapolis, Minnesota, pp. 343–353.
(i) «Historical Explanation: An Interview with Sir Karl Popper», University of Denver Magazine,3, pp. 4–7.
(b) «Time’s Arrow and Feeding on Negentropy», Nature, 213, p. 320.
(d) «La rationalité et le statut du principe de rationalité», Les Fondements Philosophiques des Systèmes Economiques: Texts de Jacques Rueff et essais rédigés en son honneur 23 août 1966, edited by Emil M. Claassen, Payot, Paris, pp. 142–150.
(e) «Zum Thema Freiheit», in Die Philosophie und die Wissenschaften: Simon Moser zum 65. Geburstag, edited by Ernst Oldemeyer, Anton Hain, Meisenhem am Glan, pp. 1-12.
(h) «Structural Information and the Arrow of Time», Nature, 214, p. 322.
(к) «Quantum Mechanics without ‘The Observer’», Quantum Theory and Reality, edited by Mario Bunge, Springer-Verlag, Berlin, Heidelberg, New York, pp. 7-44.
(t) «Einstein’s Influence on My View of Science: An Interview», in Einstein: The Man and his Achievement, edited by G. J. Whitrow, B.B.C., London, pp. 23–28.
(e) «Is there an Epistemological Problem of Perception?», Proceedings of the International Colloquium in the Philosophy of Science, 3: Problems in the Philosophy of Science, edited by Imre Lakatos and Alan Musgrave, North-Holland Publishing Company (Amsterdam), pp. 163–164.
(i) «Theories, Experience, and Probabilistic Intuitions», Proceedings of the International Colloquium in the Philosophy of Science, 2: The Problem of Inductive Logic, edited by Imre Lakatos, North-Holland Publishing Company (Amsterdam), pp. 285–303.
(q) «Birkhoff and von Neumann’s Interpretation of Quantum Mechanics», in Nature,219, No. 5155,17.8.1968, pp. 682–685.