Pauli mentions in this letter Einstein's rejection of Bohm and de Broglie, and Bohr's short visit to Zürich. He also writes on Plato's concepts of space and on the theory of representation, in particular the inhomogeneous group.

Pauli suggests that Fierz publish his investigations on the Lorentz group. He writes on certain eigenfunctions of the symmetrical top and their regular representation.

Pauli writes about the contents of his article on "Phenomenon and reality" and discusses again the problem of the relation between observer and observed object. He speculates on the possibility that in organic matter, i.e. life, there may exist an influence of the act of observation on the observer, which often could be of a negative, undesirable nature.

Pauli writes on Schopenhauer's philosophy and the analogy of his "will" to Jung's unconscious.

Pauli writes on physics and psyche, on a conversation with Jung on Albertus Magnus and Regiomontanus and the latter's interest in magic. He explains Jung's reaction to the fact that Cicero translated "atom" by "individuum".

Pauli makes a short reference to Jauch's work.

Pauli compares the roots of his metaphysical beliefs with those of Fierz. He also writes on the Jewish component in modern science.

Pauli sends some information (in the form of questions and answers) on the state of quantum electrodynamics in connection with Fierz's visit to the USA.

Pauli writes about a possible successor for Speiser and on the english translation of his book on Kepler. Pauli is against separating his essay from Jung's, in spite of his reservations against Jung.

Pauli writes of the meeting in Pisa and of talks with Heisenberg, Schwinger and Gell-Mann.