Volume II -- III. Particles with Spin -- A. One-Body Problems -- B. Two- and Three-Body Problems -- IV. Many-Body Problems -- A. Few Particles -- B. Very Many Particles: Quantum Statistics -- V. Non-Stationary Problems -- V. Non-Stationary Problems -- VI. The Relativistic Dirac Equation -- VI. The Relativistic Dirac Equation -- VII. Radiation Theory -- VII. Radiation Theory -- Mathematical Appendix -- Coordinate systems -- ?function -- Bessel functions -- Legendre functions -- Spherical harmonics -- The hypergeometric series -- The confluent series -- Some functions defined by integrals -- Index for Volumes I and II