History of telegraphy - Beauchamp, K. G. (London, United Kingdom Institution of Engineering and Technology, 2001)
Pt. 1. Terrestrial telegraphy: Things mechanical ; Early electric ideas ; Commercial telegraphy ; Military operations ; Submarine cables -- pt. 2. Aerial telegraphy: Marconia and the experimenters ; Telegraphy for peace-- ; --and at war ; Military telegraphy at sea ; Military telegraphy in the air ; Epilogue.
Electronic reproduction.
Keywords: Telegraph -- History; Electronic books