Pauli comments on an essay by Erich Neumann in the Eranos-Yearbook of 1948.

In this letter, Pauli gives further remarks on Weyl's parallel between Leibniz's principle and the exclusion principle. He also writes on Jung's synchronicity and its relation to causal events. It's said that the "elimination of all uncontrolable factors necessarily leads to destruction of the significance of synchronicity".

Pauli comments on a paper by Fierz. He makes comments on a book recommended to him by Fierz and he also writes on the imaginary antagonism between nations.

Pauli writes on the symbolic significance of trinity and quaternity, with reference to the polemic between Kepler and Fludd. He also writes on the problem of opposites: compensatory opposites and complementary opposites. He also develops the subject of the conceptual shortcoming of the field concepts.

Pauli writes on the reasons for the identical reaction of communists and catholics against complementary and indeterminism. He is against Bohm's interpretation of quantum physics. He also comments on his lectures in the Institute Poincaré on Fierz's comparison between Mach and Descartes.

Pauli writes on a mathematical representation of Bohm's theory.

Immediately after his return from India, Pauli gives his impressions.

Pauli makes some remarks on the use and abuse of the word "metaphysics". He also writes on the difference between Einstein and Pauli regarding the conception of quantum mechanics.

Pauli gives some biographical hints for the H-theorem. He writes on a recent publication by de Broglie and Vigier about the indeterminism of quantum physics.

Pauli makes further remarks about the H-theorem.