The electric telegraph, together with the railway-train and the steamship, constituted the three most conspicuous features of late 19th century civilization. Indeed, it may be truly said that the harnessing electricity to the service of man for human communication has effected a change in political, commercial, and social relations, even more complete than that wrought by steam locomotion. This is the story of how the electric telegraph cable was laid across the floor of the Atlantic from Newfoundland to Ireland. – Summary by modified from the introduction     [chương_files]