Pauli asks pedagogical questions in connection with the impending seminar on group theory and quantum mechanics. He also makes some comments on Fierz's historical paper.

Pauli makes detailed remarks on the problem of weak interaction. He has some questions as regards the mathematical side.

Pauli replies to Fierz's letters on thermodynamics. He refers to papers by V Neumann, Szillard and Einstein. He also writes on different formulations of entropy which have the same meaning.

Pauli replies to Göhring's letter of the 6 May 1954. He suggests "Science and Western Thought" as title for his lecture. He explains his meaning of "western".

Pauli asks for details about Gürsey's formalism with a non-degenerate vacuum. He enumerates several problems which worry him, e.g. mirror states, classification of elementary particles, etc...

Pauli writes about the topic of his lecture to be given in Lund. He makes some remarks about scientists mixing in politics because he is against it.

Pauli writes about his forthcoming visit to Sweden.

Pauli comments on Heisenberg's letter and his introduction of the square of fluctuation in zero approximation.

Pauli indicates a weakness in Dirac's theory.

Pauli replies to Heisenberg's letter of the 1st February.