Striking, original exposition of classical underpinnings of modern quantum field theory. Space-time, Lorentz transformations, etc. The first comprehensive treatment of relativistic electrodynamics, and still essential reading in the field, deftly revealing the classical underpinnings of modern quantum field theory. Among the topics: space-time, Lorentz transformations, conservation laws, equations of motion, Green's functions and action-at-a-distance electrodynamics.