Pauli makes editorial remarks on Klein's article. He reports on his trip to Holland.

Letter from J. T. Muheim to Franca Pauli.

Pauli writes about thermodynamical irreversibility and quantum theory. He makes remarks about Pais' work and his W-space, about quantum field theory and about the analogy between the electromagnetic eigen-field of an electron and the gravitational eigen-field of a photon.

Pauli gives his views on mutations and selection. He makes remarks on Klein's work and Heisenberg's attempts at a unified field theory. Pauli makes plans for a relativity congress.

Pauli writes about a thought experiment on statistical mechanics, using molecular beams for separation of different stationary states of molecules.

Pauli writes about a thermodynamical problem. He gives calculations of entropy change of a gas in a box with due regard to quantum statistics.

Letter from Franca Pauli to Roswitha Rahmy (CERN archivist) with invitations to lectures held in honour of Wolfgang Pauli at the ETH Zurich.

Letter from Roswitha Ramy (CERN archivist) to Franca Pauli concerning the lectures 1978-1979 held in honour of Wolfgang Pauli at the ETH Zurich.

Letter from Franca Pauli to Roswitha Rahmy (CERN archivist) concerning accession to the Pauli Archive of a programme of lectures held in honour of Wolfgang Pauli at the ETH Zurich.

Letter from Franca Pauli to Roswitha Ramy (CERN archivist) concerning accession of documents to the Pauli Archive.