Fierz makes some remarks about the $\beta$-decay and the properties of the neutrino and the anti-neutrino.

Fierz comments on two papers by Huang, Yangr and Luttinger on the statistics of rigid spheres.

Fierz writes about a note by Kusaka, published in: Physical review: 60 (1941) 61, regarding the theory of the neutrino with spin 3/2.

Fierz discusses the unitary representations of the Lorentz group for general functions expanded in vector functions of Harish-Chandra. He applies to Majorana'a equations published in: Nuovo Cimento: 1932.

Fierz investigates whether the non-statistical H-curve has the properties demanded by Boltzmann.

Fierz sends a note written by Schiff. He solves a differential field equation.

Fierz writes on Goethe and the blue colour. He makes further remarks on Henry More and Newton and on their rejection of Descartes' mechanistic world picture.

Fierz writes about an exhibition on Regiomontanus, his life, his mathematical and metaphysical beliefs.

Fierz disagrees with Pauli's remarks on Fierz's treatment of the ergodic hypothesis.

Fierz makes several comments on a letter of Pauli about the woman in Eckhart's mysticism, and on space, its geometrization and spiritualization.