Circular about the inauguration of the Forum Dialecticum.

Remarks on a paper by D. Blanusa on relativistic thermodynamics.

Article on heredity.

Draft for a letter which has not been sent.

Book review of Magdalene Aebi ("Kants Begründung der deutschen Philosophie") published in Neue Zürcher Zeitung, 1948-08-21.

Invitation to a meeting of the Physical society (Zurich) where W. Pauli made his speech on the history of the neutrino. Program of the whole meeting and minutes.