Julian Schwinger (1918-1994) was born in New York City. He obtained his Ph.D. in Physics from Columbia University in 1939. He also received honourary doctorates in science from Purdue, Brandeis, Harvard, and Gustavus Adolphus College. He taught at the University of California, Los Angeles, from 1972 until his death. In 1965, Dr. Schwinger received (with Richard Feynman and Sin Itiro Tomonaga) the Nobel Prize in Physics for his work in quantum electrodynamics. A National Research Foundation Fellow (1939-1940) and a Guggenheim Fellow (1970), he was the recipient of many awards, including: the First Einstein Prize Award for Physics (1964), and the American Academy of Achievement Award (1987).

• Particles * Unitary Transformations * Galilean Relativity * Einsteinian Relativity * Critique of Particle Theory Sources * Spin 0 Particles. Weak Source * Spin 0 Particles. Strong Source * Spin 1 Particles. The Photon * Spin 2 Particles. The Gravitron * Particles with Arbitrary Integer Spin * Spin Particles. Fermi-Dirac Statistics * More About Spin Particles Neutrinos * Particles of Integer + Spin * Unification of All Spins and Statistics Fields * The Field Concept. Spin 0 Particles * The Field Concept. Spin Particles * Some Other Spin Values * Multispinor Fields * Action * Invariance Transformations and Fluxes. Charge * Invariance Transformations and Fluxes. Mechanical Properties * The Electromagnetic Field. Magnetic Charge * Charge Quantization. Mass Normalization * Primitive Electromagnetic Interactions and Source Models * Extended Sources. Soft Photons * Interaction Skeleton. Scattering Cross Sections * Spin Processes * Sources as Scatterers * H-Particles * Instability and Multiparticle Exchange * The Gravitational Field