About Hans Thirring's work on gravity, a work by Rella, Hans Thirring's article 'Atombau und Krystallsymmetrie'.

Pauli sends an outline of a relativity article. He attempts to avoid any collision with Kottler's article. He makes proposals for uniform notation with Kottler.

Pauli writes about the question of whether n or k determines the total moment of the atom.

(In continuation of a letter by Sommerfeld to Landé) Pauli says that he has studied Landé's work about interaction of circular orbits by means of the adiabate-hypothesis and that he can show a simpler way to arrive at the result.

Pauli criticises the improper account of retarded four-potential in Landé's model for X-ray doublets sent to Sommerfeld.

Heisenberg writes on the anomalous Zeeman effect.

Heisenberg replies to Pauli's critical remarks about his last letter.

Heisenberg writes on the quantization of the outer electron of an atom on weak external magnetic fields and in increasing fields until the Paschen-Back-effect.