Pauli makes preliminary congratulation on Meitner's 80th birthday. He sends her as a present an article on the history of the neutrino. He mentions Bohr's idea of 1930 that energy-law is not valid in Beta-decay.

Pauli hopes to meet Lise Meitner with Klein in Stockholm on 20 Sept.

Pauli makes some historical remarks about the beginnings of the neutrino hypothesis. He writes about the experiments of Davies on the cross section of the neutrino.

Pauli thanks Meitner for her letter of 14 Oct. He answers Meitner's question as to whether he is now less critical of Heisenberg's recent theory. He congratulates her on her 80th birthday.

Pauli telsls of a possible assistantship for Delbrück. He also writes about the neutron.

Pauli refers to the ideas of G D Wassermann on "mental patterns", which are similar to Jung's archetypes. He believes in a wider significance of the concept of archetype which may help undestanding ESP and its connection with evolution. He asks a specific question regarding ESP experiments.

Pauli gives hi views and asks questions on meson interactions in connection with a paper by Matthews.

Pauli expresses interest in Ma's redundant zeros of the S-matrix in the case of a potential $Ae^{\mu r}$.

Pauli talks about the Riesz-Gustafson method. He makes some comments on Ma's letter of 26 June.

Pauli makes further remarks on the redundant zeros of Ma, with a mathematical addendum.