Zwahlen writes about success of solving a differential equation.

Schrödinger replies to Pauli's letter of the 27 January 1955 (Letter 1992). He talks about Pauli's thesis that statements on observation are based already on an accepted theory. He talks about his occupation with Proca's field equations.

Weyl welcomes Pauli as a collaborator. He compares notes from the 3rd edition of his own book with Pauli's resultes. He writes about the asymmetry of positive and negative electricity.

Weyl thanks Pauli for his proofs and for his paper published in Phys. Z. He writes about the statistic spherical-symmetrical solution of Einstein's field equations. He writes about the difference between the two electric charges, and its dependence on the more fundamental difference between past and future. He comments on the fields in the interior of the electron.

Born expresses a great interest in Pauli's paper on Eyl's theory and agrees in particular to his remark that continuum theory cannot be applied to the interior of the electron because of the introduction of quantities which are in principle unobservable. He suggests to Pauli to prove that the surface energy of NaCl cube is smaller than that of any other surface.

Schrödinger replies to Pauli's letter of the 26th August 1922. He answers to Pauli's comments on his paper about interaction of radiation and atoms.