Pauli writes about the English translation of his book on relativity. In continuation of his letter of the 27 January 1956, he comments a meeting in Hamburg, on the 1 December 1955, with somebody he has not seen for thirty years and relates this experience to his striving for a balance of the "internal" and "external".

Pauli comments on a proof of a paper by Fierz on Jordan's theory of gravitation.

Pauli comments on a paper by Farquhar and Landsberg "On the Quantum statistical ergodic and H-theorem" which refers to Fierz's work. He also makes additional remarks on Fierz's paper on the H-theorem.

Pauli makes a suggestion concerning the ergodic problem and he also writes about a meeting he had with Pryce in Varenna.

Pauli discusses the relation between reactions of mesons with neutrinos and the beta-disintegration of nucleons. Pauli added some information to this letter in a second letter dated the same day (fierz_0092-175).

Pauli discusses some probelms of beta-disintegration, with special referecne to the "Fierz-terms".

Pauli writes on the importance of a paper by Coester, published in: Physical review: 83 (1951), for the problem of the transition from neutral vector mesons to quantum electrodynamics. He explains the connection of this paper with that of four Japanese physicists, published in: Progress of theoretical physics: 6 (1951) on the possibiliy of avoiding indefinite metric in Hilbert-space in quantum electrodynamics.

Pauli writes on a correspondence with Heisenberg on his ideas on field quantization.

Pauli makes a critical comment on Fierz's paper on Jordan's theory.

Pauli makes a comment on Fierz's letter. He writes that equations which cannot be derived from a variation principle must fail in the end, both in the mechanics of points and in classical field theory. He speaks about a book by Jordan and he speculates on the origin of life. Pauli suspects that its first beginnings are non-reproductive phenomena like Jung's "synchronic" phenomena.