Signalling across space without wires being a description of the work of Hertz & his successors

Experiments with Alternate Currents of High Potential and High Frequency A Lecture Delivered before the Institution of Electrical Engineers, London

Hertzian Wave Wireless Telegraphy

Lessons in Wireless Telegraphy

Masters of Space Morse and the Telegraph; Thompson and the Cable; Bell and the Telephone; Marconi and the Wireless Telegraph; Carty and the Wireless Telephone

Notes on Recent Researches in Electricity and Magnetism Intended as a Sequel to Professor Clerk-Maxwell's Treatise on Electricity and Magnetism

The Radio Amateur's Hand Book A Complete, Authentic and Informative Work on Wireless Telegraphy and Telephony