Pauli writes about the planned Bohr Festschrift. He makes some remarks about Bohr's attempt to create a kind of a religion of complementarity as in former times one has made "energetics" into a sort of "world religion". But the basis of physics is too narrow for such attempts. One should resist the natural impulse which grows with age, to bring everything under one roof.

Fierz comments on a paper by Bargmann and Wigner, and some calculations as regads the quantization of the Wigner theory published in: Zeitschrift für Physik (1948), 124, 665.

Concerns biology, evolution, and concepts relating to wholeness, and to the observer.

Touschek writes about Pais paper published in Physica. He writes about his own work on time-reversal.

Fierz gives the conclusions of his letters about the Lorentz group and makes general observations about the problem.

Lüders thanks Pauli for his letter of 16 June and his offprints on field theories covariant with regard to the Lorentz group.

Kröner makes some additional comments on their conversation of 14 July. He speaks about the contents of consciousness, phenomenalism and realism, reality in quantum physics, the borderline between science and the absolute. He opposes Weizsäcker's interpretation of experiments.

Pauli discusses, among other things, Schopenhauer, Greek and Buddhist philosoph, and the oppositions phenomenism-realism, consciousness-existence, observer-observed object, etc.