International encyclopedia of unified science;
v.
Content notes : pt.1. Encyclopedia and unified science / O. Neurath [et al.]. Foundations of the theory of signs / C.W. Morris. Foundations of logic and mathematics / R. Carnap. Linguistic aspects of science / L. Bloomfield. Procedures of empirical science / V.F. Lenzen.--pt.2. Principles of the theory of probability / E. Nagel. Foundations of physics / P. Frank. Cosmology / E. Finlay-Freundlich. Foundations of biology / F. Mainx. The conceptual framework of psychology / E. Brunswik.
Science. Wetenschapsfilosofie.