HEROES OF THE TELEGRAPH
BY
J. MUNRO
AUTHOR OF 'ELECTRIClTY AND ITS USES,' 'PIONEERS OF ELECTRICITY,' 'THE WIRE
AND THE WAVE'; AND JOINT-AUTHOR OF 'MUNRO AND JAMIESON'S
POCKET-BOOK OF ELECTRICAL RULES AND TABLES.'
LONDON
THE RELIGIOUS TRACT SOCIETY
56, Paternoster Row; 65, St. Paul's Churchyard
and 164, Piccadilly
1891
