Electric waves

Waves and ripples in water, air, and æther

J. A. Fleming, Sir

The Theory of Heat Radiation

Max Planck

Hertzian Wave Wireless Telegraphy

J. A. Fleming, Sir

Signalling across space without wires

Oliver Lodge, Sir

Notes on Recent Researches in Electricity and Magnetism

J. J. Thomson

Radiotechnik

Hanns Günther

German