Oliver Heaviside FRS (1850-1925) was a brilliant self-taught electrical engineer, physicist and mathematician. Published in 1893, this is the last of three volumes that summarise his work in electromagnetic theory. It reviews his work on waves from moving sources, and compares vector analysis with quaternions.

Published separately in 1893, 1899 and 1912, these three volumes bring together Oliver Heaviside's extraordinary contributions to electromagnetic theory.