Pauli writes of Thirring's reaction to van Hove's letter.

Pauli writes about Thirring's reply to Pauli's criticism. He talks about an error in Pauli's last letter concerning quantum electrodynamics. He writes about a discussion with Thirring at the Bern-conference about indefinite metric.

Pauli talks about publications in Russia on quantum electrodynamics.

Full text: "mein kommen moeglich brief folgt = pauli" (my coming possible letter arrives = pauli)

Pauli talks about a paper by Kita who found an error in Heisenberg's calculations. Pauli doubts that Heisenberg's S-matrix can remain unitary.

Pauli writes about Weyl's death, on December 8. He mentions Weyl's 70th birthday and Pauli's address to this occasion.

Pauli replies to Heisenberg's letter of 10 December. He writes on clarifications of the differences in their respective views on the necessary presuppositions for a quantized field theory. He has a short discussion of quantum-electrodynamics and the Lee model.

Pauli makes some comments on Källén's exposition on "Retarded functions of two variables".