Werner Heisenberg is one of the greatest scientists of our century. His work extends over a period of fifty years, ranging from turbulence theory, the establishment of quantum mechanics, its fundamental applications in atomic and solid state physics, to the theory of cosmic ray phenomena and of elementary particles. He recognized early the epistemological significance of the new discoveries. He was able to place the radical changes in the foundation of physics of this century in the historical context of natural philosophy. His thoughts on language as the medium to grasp scientific truth,...

This is the final volume of Heisenberg's Collected Works. It contains his papers on a (nonlinear) unified theory of elementary particles, as well as his contribution to superconductivity and multiparticle production. Especially interesting is the first group of papers, which is split intotwo sections dealing with, firstly, the formulation of the famous nonlinear spinor equation and, secondly, its applications. Among others the reader willfind a thorough discussion of Heisenberg's collaboration with W. Pauli on these matters. Illuminating annotations to the various sections in this volume have...

This second Series A volume of Werner Heisenberg's Collected Works covers a period of about 15 years beginning with the early papers on quantum field theory in 1929/30 and ending with those on the scattering matrix (up to 1946). The reader will find Heisenberg contributions to Dirac's theory of the electron, to nuclear physics, to cosmic ray phenomena, and to reactor physics. The papers on the Uranium Project, classified for a long time and never fully published before, will certainly attract a wide audience. As in the first volume, each group of papers is furnished with an...