Heisenberg summarizes the mathematical results as regards dipole ghosts on which he ana Pauli agree.
Heisenberg, WernerHeisenberg replies to Pauli's arguments about the splitting of the dipole ghost by an interaction energy, and about the problem of causability in connection with his theory.
Heisenberg, WernerHeisenberg makes two remarks on Pauli's questions: 1) about complex eigenvalues of the system N+2$\Theta$, 2) about potentials of forces between elementary particles.
Heisenberg, WernerHeisenberg explains that the unitarity of the o-matrix and the positive sign of the norm of stationary states in the Hilbert-space I are two aspects of the same fact.
Heisenberg, WernerHeisenberg suggests an outline for a common paper to be published by Pauli and himself.
Heisenberg, WernerHeisenberg thanks Pauli for his preprint on the conservation of leptonic charge. He sends by the same mail a first blueprint of the Lee model paper. He writes about further progress in his calculations.
Heisenberg, WernerHeisenberg states the points on which he and Pauli agree. He asks Pauli's view on several other points.
Heisenberg, WernerHeisenberg puts a question about the transformations of two continuous groups in his "electrical" theory. If this is solved, the problem of strange particles leptons can be tackled.
Heisenberg, WernerHeisenberg disagrees with Pauli's letter and gives a new exposition of the relation between $\psi$* and $\psi$+.
Heisenberg, WernerHeisenberg comments on his own last letter, in particular on the new formalism he suggested.
Heisenberg, Werner