Pauli sends some comments and calculations on Dyson's paper on "longitudinal photons".

Pauli answers a question asked by Dyson on the comparison of the Bohr-Rosenfeld analysis with the mathematical results of quantum electrodynamics for normalized field commutators.

Pauli gives additional remarks on Dyson's calculations.

Pauli makes a comment on a paper by Dyson, which is the first of a series of papers.

Pauli sends the copy of a letter from Pauli to Paul T Matthews (dyson_0065-1). The letter shows that Pauli regardsthe electrodynamics of charged scalar mesons as solved.

Pauli expresses great doubts as to the correctness of Dirac's quantum-electrodynamical approach. He explains that it is possible that the way to describe the interaction of particles with an electromagnetic field could be fundamentally wrong.

Pauli makes some remarks on Dirac's theory, particularly on the problem of low-frequency photons.

Pauli quotes and comments parts of a letter of Eliezer. He also writes about a letter of Heitler whose method leads in the case of meson-fields to different results from those made by Dirac. He mentions two papers by Heisenberg and comments on his unitary S-matrix.

Pauli writes of another letter of Eliezer and encloses a copy of his answer to him and he adds some remarks.

Pauli expresses his enthusiasm over Dirac's Bakerian lecture and makes several comments on it.