François
Arago

Paris Observatory


Carlo
Matteucci

University of Pisa


Carlo
Matteucci

University of Pisa


Riccardo
Felici

University of Pisa


Antonio
Pacinotti

University of Pisa


Augusto
Righi

University of Bologna

Guglielmo
Marconi

Marconi Wireless Telegraph Co.
(Options)

Guglielmo MarconiX