Heroes of the Telegraph by J. Munro

HEROES OF THE TELEGRAPH By J. MUNRO Author of ‘ELECTRICITY 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.’ (Note: All accents etc. have been omitted. Italics have been converted to capital letters. The British ‘pound’ sign has been written