Pauli replies to Källén's criticism of Thirring. He makes some remark about jealousy among colleagues. He writes on quotation from a paper by Landau (Bohr-Festschrift) about an argument of Pomeranchuk in favour of the absence of physical interactions for point particles. Note by Thirring on coupling of a spinor field with a scalar field and discussion of it.

Full text: "Konferenz in erster April Haelfte passt ausgezeichnet Vorlesungsbeginn Zürich 20 April = Pauli" (conference in the first half of April suits perfectly lecture beginning Zürich 20 April = Pauli)

Pauli writes on technicalities about Pauli's impending visit to Hamburg.

Pauli writes about his visit to Hamburg and gives his impression of Jordan. Annexed to the letter (in fierz_0092-163) Pauli describes 7 dreams. He would like to know of Fierz's reaction to these dreams. The letters are dated 1954-07-20, 1954-08-28, 1954-09-30, 1954-10-01 (?), 1955-08-12, 1955-08-27.

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

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 talks about the organization of a colloquium of Israeli physicists in Zürich.