1 “... of contributors who were well qualified for the task. Due to his advancing age Mr Manfred Hess, the originator...”

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16 Table of Contents: “... Wieland; Professor Dr. med. Benno Hess; Professor Dr. med. Robert Domenjoz; Professor Dr. phil. Fritz...”

17 “... Verständnis der logischen Struktur der Theorie führen. Das Manuskript wurde von Dr. MARY HESSE durch­ gelesen...”