Electricity and Magnetism

The volume offers a popular, nontechnical account of electrical and magnetic phenomena, combining historical overview, theoretical explanation and practical applications. It traces the development of electrical science and magnetism, explains theories of atoms, ether, and electricity as a mode of motion, and describes currents, generators, atmospheric electricity and measurement. A large practical section treats telegraphy, receivers, multiplex and duplex systems, the telephone and its operation, submarine and short-line telegraphs, wireless telegraphy, and the telautograph. The book concludes with discussion of harnessing large power sources, industrial electrical products such as aluminum, carborundum, bleaching powder and calcium carbide, and prospects for a new electrical era.