EDITORIALFRIEDRICH STADLER, Arne Næss: Dogmas and Problems of EmpiricismJAN FAYE, Niels Bohr and the Vienna CircleJUHA MANNINEN, Between the Vienna Circle and Ludwig Wittgenstein. The Philosophical Teachers of Georg Henrik von WrightJOHAN STRANG, Between the National and the International - Theoria and the Logical EmpiricistsCARL-GÖRAN HEIDEGREN, Positivism before Logical Positivism in Nordic PhilosophyMARJA JALAVA, The Earliest Extensive Reception of Mach in the Nordic CountriesILKKA NIINILUOTO, Kaila’s Critique of VitalismARTO SIITONEN, Kaila and Reichenbach as Protagonists of NaturphilosophieCARL HENRIK KOCH, Jørgen Jørgensen and Logical PositivismTHOMAS MORMANN, The Debate on Begriffstheorie between Cassirer, Marc-Wogau - and SchlickTHOMAS UEBEL, The Nature and Status of Metatheory. The Debate between Otto Neurath and Åke PetzällMICHAEL VON BOGUSLAWSKI, Young Ketonen and His Supreme Logical DiscoveryFREDRIK W. THUE, Empiricism, Pragmatism, Behaviorism: Arne Næss and the Growth of American-styled Social Research in Norway after World War IIJaakko Hintikka in the Library of Living Philosophers: A Dialogue between Simo Knuuttila and Jaakko HintikkaReport/Documentation:GERALD HOLTON, On Unity and Disunity in the Sciences: Variations of Ancient ThematasReview Essay: THOMAS MORMANN, Enlightenment and Formal Romanticism - Carnap’s Account of Philosophy as ExplicationReviews