History & Philosophy of Science in 1967

Memorial Colloquium: Logic and Foundations of Science Paris, Institut Henri Poincaré, 19-21 May 1964 by Beth, Evert Willem, Loparo, Kenneth A., Destouches, Jean Louis

Räumliche Vorstellung Und Mathematisches Erkenntnisvermögen: Zweiter Band by Verloren Van Themaat, P.

The Mental and the Physical: The Essay and a Postscript by Feigl, Herbert

The Nature of Social Science by Caspar, George