Pauli comments on further letters by Fierz on the Jordan theory. He makes some pessimistic remarks about the present stagnation in theoretical physics.

Pauli replies to Fierz's letter concerning Fierz's work on the H-theorem. Pauli qualifies his strong criticism of the last part of the paper, which he expressed in his previous letter.

With this letter, Pauli adds, to his previous letter written on the same day (fierz_0092-174), some empirical data about the $\pi$-meson disintegrations.

Pauli sends some remarks about the Hamilton function of the $\beta$-disintegration.

Pauli asks some questions and makes some remarks concerning the violation of parity. He pursues the letter on two dreams and makes an addition to a discussion about dipole ghosts.

Pauli writes about a letter by Salam on the possible revival of the 2 neutrino theory of light.

Pauli writes on the error in Salam's theory.

Pauli refers to his article in "Dialectica" in connection with the question of the significance of gnostic-alchemistic mythology for modern science.

Pauli writes on an article by Kerenyi on Greek mythology and its connection with certain ideas which lately occupied Pauli's mind.

Pauli rejects Fierz's criticism of his physical interpretation of complex energy values for an indefinite metric. To prove his case, he treats the interaction with the help of perturbation theory.