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

by Walter Kellogg Towers

B

Baltimore-Washington Telegraph Line, 86.
Bell, Alexander Graham, parentage, 140;
youth, 141;
teaches elocution, 146;
experiments with speech, 151, 161;
meets Henry, 158;
invents telephone, 162;
at Centennial Exposition, 165;
demonstrates telephone, 170;
Bell Telephone Association, 178;
Bell-Western Union Settlement;
Bell and wireless telegraphy, 189;
Transcontinental telephone, 248.
Bethell, Union N., 241.
Blake, Clarence J., 154.
Blake, Francis, invents telephone transmitter, 182.
Branly coherer, 204.
Brett, J.W., 112.
Bright, Charles Tiltson, 112, 120, 125, 128.