Julian Schwinger

• 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