Pauli letter collection: letter to Victor F Weisskopf

Pauli reports on the Houtermans case, on the arrest of Russian physicists, and on the conclusion of a joint work with Fierz on the "infrared catastrophe". He has had discussions with Bhabha and Kemmer on cosmic radiation and the "Yukawa theory" of nuclear power. He makes some remarks on the theory of β-decay, the American way of life, and Felix Bloch.