Pauli sends the final form of his lecture notes.

Pauli makes comments on Edmonds' lecture notes and on Glaser's work on the Lee model. He writes of a possible sign error in Heisenberg's S-matrix. He writes about his possible trip to Princeton.

Pauli makes comments on Edmonds' lecture notes. He writes about his possible trip to Copenhagen and Moscow in 1957, and about his Italian holidays.

Pauli discusses the vacant post of assistant. He writes about problems with Amaldi's scattering experiment, Villars' strong-coupling deuteron , symmetric weak coupling, Peng's (in: Proc. Roy. Soc. : 18 (1946), pp.119) attempt to remove divergencies, Heisenberg's S-matrix and Ma's redundant zeros.

Pauli discusses Heitler-Wilson and other rules to determine S-matrix. He writes of difficulties with two "test problems": nucleon magnetic moments and Bremsstrahlung.

Pauli says that Ma's redundant S-matrix zeros invalidates a Heisenberg equation. He writes that he received Heisenberg's papers. He makes travel plans to Stockholm and Copenhagen. He learns the Riesz-Gustafson method.

Pauli writes that Blackett will convey reprints to Heisenberg. He makes progress on the Riesz-Gustafson method.

Pauli encloses calculations justifying Misner's "H-principle".

Pauli makes remarks on Misner's work: the Hamiltonian density cannot vanish, neither classically nor with quantization.