Pauli talks about a paper by Holtsmark in Naturwissenschaften.

Pauli talks about reasons for writing to Klein and not to Bohr, involvement with Heisenberg in field theory, Heisenberg's "artificial" solution of the commutation problem, difficulty with continuous beta-decay energy, and shortcomings of the field theory.

Pauli writes about his discussion with Miss Meitner on the experiments of Ellis and Wooster on Beta-decay.

Pauli writes about the excess of the scattered radiation over the Klein-Nishina formula and its possible interpretation on nuclear effect.

Pauli congratulates Klein on his work, his new position and remarks on physics in Sweden and Klein's work. Pauli describes his attempts to treat beta decay using "neutron" hypothesis. Pauli gives arguments against failure of energy

Pauli writes about a review of Gamow's book, written by Pauli.

Pauli states again his conjecture that a penetrative radiation is emitted in the Beta-decay. He also repeats his more important that conservation of energy and momentum in nuclear processes is conservation of all quantized quantities and the law that the symmetry character of the total system is not changed. by such a problem. He discusses relations between proton and neutron, and in great detail, the theory of holes.

Pauli gives some suggestions for a joint meeting with Born in Bolzano. He comments on the theory of holes in the light of Peierl's results.