Pauli writes that he accepts the invitation to a lecture at the Institute Henri Poincaré and suggests to give the talks in English. The subject of the lectures is "selected chapters of the theory of quantized fields".

Pauli refers to two manuscripts sent to him. He encloses a copy of a letter to Bohm outlining Pauli's criticism of Bohm's "Hidden parameters".

Pauli expresses his delight over Destouches' impending visit in Zürich.

Pauli critizises a paper by Destouches on the physical interpretation of wave mechanics. He also implies a criticism of Louis de Borglie's point of view, given in his paper in: J. Phys. : 8 (1927), pp.225.