Agassi, J. 1975. ‘Modified Conventionalism’, in his Science in Flux. Boston: Reidel, pp. 365–403.CrossRefGoogle Scholar

Agassi, J. 1997. Email to Malachi Haim Hacohen concerning Popper and Duhem. 4 August.Google Scholar

Agassi, J. 1998. Email to Malachi Haim Hacohen concerning Popper’s relationship with Alfred Adler. 6 June.Google Scholar

Anon, ., 1937. ‘Die Philosophen in Paris’, Unidentified Newspaper, 5 August. Popper Collection, Hoover Institute Archives, Stanford University (18, 2).Google Scholar

Ayer, A., ed., 1959. Logical Positivism. New York: Free Press.Google Scholar

Bartley, W. 1989. ‘Rehearsing a Revolution: Music and Politics’ (Extract from ‘Karl Popper: A Life’). In: Pacific Regional Meeting of the Mont Pélerin Society. Christchurch: New Zealand 24–27. http://bartleyinstitute.org/shelf/wp-content/uploads/2010/09/Rehearsing-a-Revolution.pdf, accessed 15 June 2014.Google Scholar

Bauer, O. 1907. Die Nationalitätenfrage und die Sozialdemokratie. Vienna: Ignaz Brand.Google Scholar

Belke, I. 1978. Die sozialreformerischen Ideen von Josef Popper-Lynkeus (1838–1921) im Zusammenhang mit allgemeinen Reformbestrebungen des Wiener Bürgertums um die Jahrhundertwende. Tübingen: Mohr.Google Scholar

Blumberg, A. and Feigl, Herbert, 1931. ‘Logical Positivism: A New Movement in European Philosophy’, Journal of Philosophy 28, 281–96.CrossRefGoogle Scholar

Borkenau, F. 1962. World Communism: A History of the Communist International. Ann Arbor: University of Michigan Press.Google Scholar

Boyer, J. 1978. ‘Freud, Marriage, and Late Viennese Liberalism’, Journal of Modern History, 50, 72–102.CrossRefGoogle ScholarPubMed

Boyer, J. 1995. Culture and Political Crisis in Vienna: Christian Socialism in Power, 1897–1918. Chicago: Chicago University Press.Google Scholar

Bretenbach, B. 1991. ‘The Long March from Hearth to Heart’, Social Research, 58, 1, 69–83.Google Scholar

Bühler, K. 1918. Die geistige Entwicklung des Kindes. Jena: Fischer.Google Scholar

Bühler, K. 1927. Die Krise der Psychologie. Jena: Fischer.Google Scholar

Burger, E. 1923. Arbeitspädagogik: Geschichte, Kritik, Wegweisung. 2nd ed. Leipzig: Engelmann.Google Scholar

Carnap, R. 1928. Der logische Aufbau der Welt. Berlin: Weltkreis.Google Scholar

Carnap, R. 1932a. Correspondence with Karl Popper and Otto Neurath, Fall 1932. Carnap Collection, Archives of Scientific Philosophy, University of Pittsburgh.Google Scholar

Carnap, R. 1932b. ‘Über Protokolsätze’, Erkenntnis 3, 223–28.CrossRefGoogle Scholar

Carnap, R. 1934. Correspondence with Karl Popper, August 1934. Carnap Collection, Archives of Scientific Philosophy, University of Pittsburgh.Google Scholar

Dahms, H.-J. 2006. ‘Karl Poppers erste Schritte in die Philosophie: Leonard Nelsons Paradoxien der Souveränität und Nelsons sowie Poppers Lösungsversuche’, in Karl Popper: A Centenary Assessment, ed. Jarvie, Ian, Milford, Karl and Miller, David. 3 vols. Hants, England: Ashgate, volume 1, pp. 83–98.Google Scholar

Dahms, H.-J. and Stadler, Friedrich, 1991. ‘Popper und der Wiener Kreis – Aus einem Gespräch mit Sir Karl Popper (1991)’, in Stadler, Friedrich, Studien zum Wiener-Kreis. Frankfurt am Main: Suhrkamp, pp. 525–45.Google Scholar

Deák, I. 1985. ‘The Habsburg Army in the First and Last Days of World War I: A Comparative Analysis’, in East Central European Society in World War I, ed. Király, B.K. and Dreisinger, N.F.. New York: Columbia University Press, pp. 301–12.Google Scholar

Einstein, A. 1919. ‘Induktion und Deduktion in der Logik’, Berliner Tageblatt, 25 December.Google Scholar

Einstein, A. 1920. Relativity: The Special and General Theory. London: Methuen.Google Scholar

Fadrus, V. 1926. ‘Die Neugestaltung der Lehrerbildung in Deutschland und Österreich’, Schulreform 5, 1–42.Google Scholar

Feigl, H. 1929. Theorie und Erfahrung in der Physik. Karlsruhe: G. Braun.Google Scholar

Feigl, H. 1969. ‘The “Weiner Kreis” in America’, in The Intellectual Migration: Europe and America, 1930–1960, ed. Fleming, Donald. Cambridge, MA: Harvard University Press.Google Scholar

Friedman, M. 1995. ‘Poincaré’s Conventionalism and the Logical Positivists’, Foundations of Science 1, No. 2, 299–314.CrossRefGoogle Scholar

Fries, J. 1967 [1831]. Neue oder anthropologische Kritik der Vernunft, 2nd ed. Sämtliche Schriften, 29 vols. Aalen: Scientia, pp. 4–6.Google Scholar

Fuchs, A. 1949. Geistige Strömungen in Österreich, 1867–1918. Vienna: Löcker.Google Scholar

Glaser, E. 1981. Im Umfeld des Austromarxismus. Vienna: EuropaverlagGoogle Scholar

Gomperz, H. 1905–08. Weltanschauungslehre. Ein Versuch die Hauptprobleme der allgemeinen theoretischen Philosophie geschichtlich zu entwickeln und sachlich zu bearbeiten. Jena: Diederichs.Google Scholar

Gomperz, H. 1932. Letter to the publisher Mohr, 21 December. Popper Collection, Hoover Institute Archives, Stanford University (300: 9).Google Scholar

Hacohen, M. 1996. ‘Karl Popper in Exile: The Viennese Progressive Imagination and the Making of The Open Society’, Philosophy of the Social Sciences 26, 452–92.CrossRefGoogle Scholar

Hacohen, M. 1999. ‘Dilemmas of Cosmopolitanism: Karl Popper, Jewish Identity, and “Central European Culture”’, Journal of Modern History 71, 105–49.CrossRefGoogle Scholar

Hacohen, M. 2000. Karl Popper – The Formative Years, 1902–1945: Politics and Philosophy in Interwar Vienna. Cambridge: Cambridge University Press.Google Scholar

Hacohen, M. 2006. ‘The Young Popper as a Scholarly Field: A Comment on Dahms, Hansen, and ter Hark’, in Karl Popper: A Centenary Assessment, ed. Jarvie, Ian, Milford, Karl and Miller, David. 3 vols. Hants, England: Ashgate Pub. Ltd., volume 1, pp. 99–110.Google Scholar

Hacohen, M. 2007. ‘Rediscovering Intellectual Biography – and Its Limits’, History of Political Economy 39, supplement 1, 9–29.CrossRefGoogle Scholar

Hacohen, M. 2013. ‘Karl Popper and the Liberal Imagination: Rationality in Science and Politics’, in I Limiti della Razionalità, ed. Del Castello, Martina and Segre, Michael. Lanciano: Editrice Carabba, pp. 111–32.Google Scholar

Haller, R. and Stadler, Freidrich, eds., 1993. Wein-Berlin-Prag: Der Aufsteig der wissenschaftlichen Philosophie. Vienna: Hölder-Pichler-Tempsky.Google Scholar

Hansen, T. 1999. Letter to Malachi Haim Hacohen, 7 April.Google Scholar

Hansen, T. 2006a. ‘Which Came First, the Problem of Induction or the Problem of Demarcation?’ in Karl Popper: A Centenary Assessment, ed. Jarvie, Ian, Milford, Karl and Miller, David. 3 vols. Hants, England: Ashgate Pub. Ltd. volume 1, pp. 67–82.Google Scholar

Hansen, T. 2006b. ‘Nachwort des Herausgebers and Zeittafel’, in Popper, Karl, Frühe Schriften. Gesammelte Werke in deutscher Sprache. 15 vols. Tübingen: Mohr Siebeck, 2006, 1, pp. 509–46, 547–53.Google Scholar

Hansen, T. 2010. ‘Nachwort des Herausgebers’, in Popper, Karl, Die beiden Grundprobleme der Erkenntnistheorie, 3rd ed. Gesammelte Werke in deutscher Sprache. 15 vols. Tübingen: Mohr Siebeck, 2, pp. 547–625.Google Scholar

Hautmann, H. 1971. Die verlorene Räterepublik: Am Beispiel der Kommunistischen Partei Deutschösterreichs. Vienna: Europa.Google Scholar

Holleis, E. 1978. Die Sozialpolitische Partei: Sozialliberale Bestrebungen in Wien um 1900. Munich: Oldenbourg.Google Scholar

Horak, R. et al., eds., 2000. ‘Introduction’, in Metropole Wien: Texturen der Moderne. Vienna: WUV.Google Scholar

Hubert, R. and Zörrer, Ferdinand, 1983. ‘Die östereichischen Grenzlogen’, Quatuor- Coronati-Jahrbuch 20: 143–66.Google Scholar

Israelitische Kultusgemeinde Wien (IKG). [computerized record]. Matrikenamt, IKG, Vienna.Google Scholar

Jarvie, I, Milford, Karl, and Miller, David, eds., 2006. Karl Popper: A Centenary Assessment. 3 vols. Hants, England: Ashgate Pub. Ltd.Google Scholar

Kraft, J. (anon.), 1932. Letter to Karl Popper, 29 July. Popper Collection, Hoover Institute Archives, Stanford University (210: 3).Google Scholar

Kraft, V. 1925. Die Grundformen der Wissenschaftlichen Methoden. Vienna: Hölder-Pichler-Tempsky.Google Scholar

Kraft, V. 1953. The Vienna Circle. New York: Philosophical Library.Google Scholar

Kuéss, G. and Scheichelbauer, Bernhard, 1959. 200 Jahre Freimaurerei in Österrich. Vienna: Kerry.Google Scholar

Laurence, R. 1992. ‘Bertha von Suttner and the Peace Movement in Austria to World War I’, Austrian History Yearbook 23, 181–201.CrossRefGoogle Scholar

Milford (Hilferding), P., 1999. Interview with Malachi Haim Hacohen at home of Karl Milford (Vienna) (recording tape & typescript.) 30 January.Google Scholar

Mill, J. S., 1843. A System of Logic, 2 vols. London: John W. Parker.Google Scholar

Nelson, L. 1904a. Jakob Friedrich Fries und seine jüngsten Kritiker. Gesammelte Schriften, 9 vols. Hamburg: Felix Meiner, 1970–74, 1, pp. 79–150.Google Scholar

Nelson, L. 1904b. ‘Die Kritische Methode und das Verhältnis der Psychologie zur Philosophie’, in Gesammelte Schriften, 9 vols. Hamburg: Felix Meiner, 1970–74, 1, pp. 9–78.Google Scholar

Nelson, L. 1908. Über das sogennante Erkenntnisproblem. Göttingen: Vandenhoeck und Ruprecht.Google Scholar

Nelson, L. 1911. ‘Die Unmöglichkeit der Erkenntnistheorie’, in Gesammelte Schriften, 9 vols. Hamburg: Felix Meiner, 1970–74, 2, pp. 485–501.Google Scholar

Nelson, L. 1928. Politics and Education. London: Allen & Unwin.Google Scholar

Nelson, L. 1949. ‘The Socratic Method’, in his Socratic Method and Critical Philosophy. New Haven: Yale University Press, pp. 1–40.Google Scholar

Neurath, O. 1935. ‘Pseudorationalismus der Falsifikation’, Erkenntnis 5, 353–65.CrossRefGoogle Scholar

Photos. Popper Collection, Hoover Institute Archives, Stanford University (Envelopes A and BB).Google Scholar

Poincaré, H. 1903. La Science et l’hypothése. Paris: Flammarion, pp. 68–109.Google Scholar

Popper, Karl, 1925. ‘Über die Stellung des Lehrers zu Schule und Schüler. Gesellschaftliche oder individualistische Erziehung?’, in his Frühe Schriften, ed. by Hansen, Troels Eggers. Gesammelte Werke in deutscher Sprache. 15 vols. Tübingen: Mohr Siebeck, 2006, 1, pp. 3–9.Google Scholar

Popper, Karl, 1927a. ‘“Gewohnheit” und “Gesetzerlebnis” in der Erziehung’, in his Frühe Schriften, pp. 83–185.Google Scholar

Popper, Karl, 1927b. ‘Zur Philosophie des Heimatgedankens’, in his Frühe Schriften, pp. 10–26.Google Scholar

Popper, Karl, 1928. ‘Zur Methodenfrage der Denkpsychologie’, in his Frühe Schriften, pp. 187–260.Google Scholar

Popper, Karl, 1929. ‘Axiome, Definitionem und Postulate der Geometrie’, in his Frühe Schriften, pp. 263–390.Google Scholar

Popper, Karl, 1931. ‘Die Gedächtnispflege unter dem Gesichtpunkt der Selbsttätigkeit’, in his Frühe Schriften, pp. 27–49.Google Scholar

Popper, Karl, 1932–33. Correspondence with publishers and Julius Kraft concerning Grundprobleme and Logik. Popper Collection, Hoover Institute Archives, Stanford University (17:6, 316:24 under Victor Kraft).Google Scholar

Popper, Karl, 1935. Logik der Forschung: Zur Erkenntnistheorie der modernen Naturwissenschaft. Vienna: Julius Springer.CrossRefGoogle Scholar

Popper, Karl, 1942–43. Correspondence with Alfred Braunthal concerning The Open Society. Popper Collection, Hoover Institute Archives, Stanford University (28:2).Google Scholar

Popper, Karl, 1944–45. ‘The Poverty of Historicism I, II, III’, Economica 11, 86–103, 119–37; 12, 69–89.CrossRefGoogle Scholar

Popper, Karl, 1945. The Open Society and Its Enemies. 2 vols. London: Routledge & Kegan Paul.Google Scholar

Popper, Karl, 1947. Letter to Rudolf Carnap, 6 January. In his After the Open Society, ed. by Shearmur, Jeremy and Turner, Piers Norris. London: Routledge, 2008, pp. 102–05.Google Scholar

Popper, Karl, 1958. ‘On the Status of Science and Metaphysics’, in his Conjectures and Refutations. New York: Basic Books, pp. 249–71.Google Scholar

Popper, Karl, 1959. The Logic of Scientific Discovery. London; Hutchinson.Google Scholar

Popper, Karl, 1962. ‘Julius Kraft’, in his After the Open Society: Selected Social and Political Writings, ed. Shearmur, Jeremy and Turner, Piers Norris. London: Routledge, 2008, pp. 12–24.Google Scholar

Popper, Karl, 1963. ‘Science: Conjectures and Refutations’, in his Conjectures and Refutations. New York: Basic Books, pp. 43–86.Google Scholar

Popper, Karl, 1967–69. Autobiography: Draft. [typescript.] Popper Collection, Hoover Institute Archives, Stanford University (134:4,11; 135:1).Google Scholar

Popper, Karl, 1972a. Objective Knowledge. Oxford: Clarendon Press.Google Scholar

Popper, Karl, 1972b. ‘On Reason and the Open Society’, Encounter 38: 13–18.Google Scholar

Popper, Karl, 1974. Letter to Alexander Gerschenkron, 24 August. Popper Collection, Hoover Institute Archives, Stanford University (298:31).Google Scholar

Popper, Karl, 1976. Unended Quest: An Intellectual Autobiography. La Salle, IL: Open Court.Google Scholar

Popper, Karl, 1979. Die beiden Grundprobleme der Erkenntnistheorie, ed. Hansen, Troels Eggers. Tübingen: Mohr.Google Scholar

Popper, Karl, 1981. ‘Preface to Fritz Kolb, Es kam ganz anders’, in his After the Open Society: Selected Social and Political Writings, ed. Shearmur, Jeremy and Turner, Piers Norris. London: Routledge, 2008, pp. 31–34.Google Scholar

Popper, Karl, 1982a. Offene Gesellschaft – offenes Universum: Franz Kreuzer im Gespräch mit Karl R. Popper. Vienna: Deuticke.Google Scholar

Popper, Karl, 1982b. Quantum Theory and the Schism in Physics and the Open Universe: an Argument for Indeterminism, ed. Bartley, W. W., III. The Postscript to the Logic of Scientific Discovery. 3 vols. London: Hutchinson, volumes 2–3.Google Scholar

Popper, Karl, 1983. Realism and the Aim of Science, ed. Bartley, W. W., III. The Postscript to the Logic of Scientific Discovery. 3 vols. London: Hutchinson, volume 1.Google Scholar

Popper, Karl, 1984a. Interview with Malachi Haim Hacohen at Popper’s home (Penn). (holograph.). 26 January.Google Scholar

Popper, Karl, 1984b. Letter to John Stachel, 15 March. Popper Collection, Hoover Institute Archives, Stanford University (292:12).Google Scholar

Popper, Karl, 1991. ‘Ein Gespräch mit Karl R. Popper über Leben und Werk, 31 August 1991’ typescript of interview by Hans-Joachim Dahms and Friedrich Stadler given to Malachi Haim Hacohen by Stadler. Major parts published in: Dahms, Hans-Joachim and Friedrich Stadler, 1991.Google Scholar

Popper, Karl, 1995. In Memory of Hans Hahn. In Hans Hahn: Collected Works, ed. Schmetterer, Leopold and Sigmund, Karl, 3 vols. Vienna: Springer, volume 1, pp. 1–20.Google Scholar

Popper, Karl, 2006. Frühe Schriften, herausgegeben von Troels Eggers Hansen. Tübingen: Mohr Siebeck.Google Scholar

Popper, Karl, 2008. After the Open Society, ed. J. Shearmur and P. Turner. London: Routledge.Google Scholar

Popper, Karl, 2009. The Two Fundamental Problems of the Theory of Knowledge. London: Routledge.Google Scholar

Popper, Karl, n.d. Single page fragment concerning Bühler. [typescript.] Popper Collection, Hoover Institute Archives, Stanford University (3:37).Google Scholar

Popper-Lynkeus, J. 1912. Die Allgemeine Nährpflicht als Lösung der sozialen Frage. Vienna: Rikola.Google Scholar

Ringer, F. 1969. The Decline of the German Mandarins: The German Academic Community, 1890–1933. Cambridge, MA: Harvard University Press.Google Scholar

Scheu, F. 1985. Ein Band der Freundschaft: Schwarzwald-Kreis und die Entstehung der Vereinigung Sozialistischer Mittelschüler. Vienna: Böhlau.Google Scholar

Schlick, M. 1925. Allgemeine Erkenntnislehre, 2nd ed. Berlin: Springer.CrossRefGoogle Scholar

Schorske, C. 1980. Fin-de-siècle Vienna: Politics and Culture. New York: Knopf.Google Scholar

Silverman, P. 1984. ‘Law and Economics in Interwar Vienna: Kelsen, Mises and the Regeneration of Austrian liberalism’, Ph.D. Dissertation, University of Chicago.Google Scholar

Stadler, F. 1981. ‘Spätaufklärung und Sozialdemokratie in Wien, 1918–1938’, in Aufbruch und Untergang: österreichische Kultur zwischen 1918 und 1938, ed. Kadrnoska, Franz. Vienna: Europaverlag, pp. 441–73.Google Scholar

Stadler, F. 1982. Vom Positivismus zur ‘Wissenschaftliche Weltauffassung’. Vienna: Löcker.Google Scholar

Stadler, F. 1994. ‘Heinrich Gomperz und Karl Popper im Kontext des Logischen Empirismus’, in Heinrich Gomperz, Karl Popper und die Österreichische Philosophie, ed. Seiler, Martin and Stadler, Freidrich. Amsterdam: Rodopi, pp. 1–29.CrossRefGoogle Scholar

ter Hark, M. 2006. ‘The Historical Roots of Popper’s Theory of Searchlight’, in Karl Popper: A Centenary Assessment, ed. Jarvie, Ian, Milford, Karl and Miller, David. 3 vols. Hants, England: Ashgate Pub. Ltd. 1, pp. 37–56.Google Scholar

Transcripts of Karl Popper’s courses at the University of Vienna. Popper Collection, Hoover Institute Archives, Stanford University (335: 19).Google Scholar

Verlassenschaftsakt of Max Schiff. Meldearchiv, Wiener Stadt-und Landesarchiv (MA 8), Vienna.Google Scholar

Verlassenschaftsakt of Simon Popper. Meldearchiv, Wiener Stadt-und Landesarchiv (MA 8), Vienna.Google Scholar

Waismann, F. 1930. ‘Logische Analyse des Wahrscheinlichkeitsbegriffs’, Erkenntnis 1, 228–48.CrossRefGoogle Scholar

Wettersten, J. 1992. The Roots of Critical Rationalism. Amsterdam: Rodopi.CrossRefGoogle Scholar

Zilsel, E. 1916. Das Anwendungsproblem. Leipzig: Barth.Google Scholar

Zilsel, E. 1921. ‘Der einführende Philosophieunterricht an den neuen Oberschulen’, Volkserziehung: Pädagogischer Teil 2, 324–41.Google Scholar