THE jubilee of Submarine Telegraphy having lately been achieved, and that connected with the Atlantic cable being somewhat close at hand, it has been thought a suitable moment for the appearance of this little volume.
In these days when the substitution of submarine cables by wireless telegraphy systems is a subject of common talk, it may be well to pause for a moment and contemplate the period of time covered by the gradual evolution of old and existing methods which at length achieved the result we now enjoy�a practical commercial telegraphic system between all the nations of the world, and notably between the United Kingdom and America.
By a somewhat curious coincidence the engineer of the first Atlantic cable accomplished his achievement at practically the same youthful age (twenty-six) as Mr. Marconi when first transmitting signals across the Atlantic without any intervening wires.