Heisenberg 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, WernerHeisenberg replies to Pauli's problem of the mirror-world. He writes on new problems in connection with the eigenvalue question.
Heisenberg, WernerHeisenberg resents the publicity given by the press to their work. He sends him by same mail an amended copy of the manuscript.
Heisenberg, WernerHeisenberg makes some additional comments on the last results. He resents the letter of Laue about the publicity given to the work. (The letter was sent to him by Pauli.)
Heisenberg, WernerHeisenberg gives three criteria for the internal consistency of their theory.
Heisenberg, WernerHeisenberg replies to Pauli's lettter and asks about the behaviour of the operator $\chi$ on the light cone.
Heisenberg, WernerHeckmann explains why he didn't cite Friedman (Z. Phys. 21, 326, 1924) in his work.
Heckmann, OGüttinger encloses a reprint of work on classical electrodynamics.
Güttinger, Paul