Philosophical papers / Friedrich Waismann ; ed. by Brian McGuinness; with an introd. by Anthony Quinton ; [partly transl. from the German and the Dutch]Empiricism and sociology / Otto Neurath ; ed. by Marie Neurath and Robert Cohen ; [transl. from the German by Paul Foulkes ... et al.]Selected papers in logic and foundations, didactics, economics / Karl MengerInquiries and provocations : selected writings 1929-1974 / Herbert Feigl ; ed. by Robert S. CohenBrentano and Meinong studies / Roderick M. ChisholmChristian von Ehrenfels : Leben und Werk / hrsg. von Reinhard FabianEssays on Wittgenstein and Weininger / Allan Janik