Pauli asks questions about the possibility of eliminating the concept of Lagrangian and the corresponding field equations from the formalism of quantized fields. He also writes about corresponding invariants.

Pauli makes mathematical remarks about the particles resulting from a spinor model. He writes on the electrodynamical aspect of his calculations. He is against the publicity given by Heisenberg to his "world-formula".

Pauli writes about his decision not to publish with Heisenberg. He writes about his discussion with Gürsey, and its contacts with Feynman and Gell-Mann. He comments on a recent talk with Delbrück on evolution.

Pauli replies to Touschek's letter of 8 April 1958. He writes about his decision not to publish with Heisenberg. He writes about the present general confusion in quantized field theory.

Pauli writes on his timetable for the next two months. He talks about the manuscript of Heisenberg's lecture on Planck, on Fierz's calculations. If one introduces an indefinite metric (e. g. the Lee-model), one has to expect an integral equation for the field.

Pauli asks a question concerning indefinite metric.

Letter from W. Pauli to E. Panofsky.