Jerrold Franklin is Professor Emeritus of Physics at Temple University. He received a Bachelor of Electrical Engineering degree from The Cooper Union School of Engineering, and an M.S. and Ph. D. in Theoretical Physics from the University of Illinois (Urbana). Before coming to Temple, Professor Franklin taught at Columbia University, Brown University, and was a Research Physicist at Lawrence Radiation Laboratory (Livermore). He has had visiting positions at Brookhaven National Laboratory, the University of Wisconsin, McGill University, the Institute of Physics of the Romanian Academy of Sciences, and the Technion, where he was a Lady Davis Fellow. Professor Franklin has over eighty scientific publications, mostly in Elementary Particle Physics. His thesis and early research was on the S-Matrix theory of scattering. Since 1967, he has studied the quark-parton model of elementary particles, concentrating mainly on the electromagnetic properties of baryons and the deep inelastic scattering of electrons by protons and neutrons. Professor Franklin has taught graduate courses in Electromagnetism, Quantum Mechanics, Quantum Field Theory, Classical Mechanics, and Mathematical Physics. The ideas for the present book were developed during his many years of teaching Classical Electromagnetism at Temple University.