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

Heisenberg writes on the anomalous Zeeman effect.

Pauli asks about stopping off at the Frankfurt institutes on his return trip from Göttingen.

The letter describes a problem of classical theory of harmonics. It talks about Pauli's calculations on Bohr's He-Model. He looks forward to his work in Copenhagen.

Pauli writes of Epstein's results for crossed electric and magnetic fields. He makes some remarks about Friedrich and Koch.

Pauli speaks about his calculations on the thermic equilibrium between radiation and free electrons, about scientific life in Hamburg and about the German translation of Bohr's Nobel-lecture.