||The discovery of atomic number, by C.G. Darwin.--The development of the interpretation of the quantum theory, by W. Heisenberg.--Exclusion principle, Lorentz group and reflexion of space-time and charge, by W. Pauli.--On the quantum theory of fields, by L.D. Landau.--On quantum electrodynamics, by L. Rosenfeld.--Quantum theory and relativity, by O. Klein.--On the theory of superconductivity, by H.B.G. Casimir.--The compound nucleus, by F.L. Friedman and V.F. Weisskopf.--Nuclear fission and nuclear stability, by J.A. Wheeler.--On the passage through matter of swift charged particles, by J. Lindhard.