After that Sömmering had discovered at Munich in 1808 the means of signalling through the galvanic current obtained by decomposition of water, and Schilling at Canstadt and Ampère in Paris (1820) had made further advances in the science of electrology, and Oersted had established the deflexion of the magnetic needle, it was felt that the day of the cumbrous and disfiguring optical telegraph was over. A new power had been discovered, though the extent and the applicability of this power were not known. Gauss and Weber in 1833 made the first attempt to set up an electric telegraph; in 1837 Wheatstone and Morse utilised the needle and made the telegraph print its messages. In 1833 the telegraph of Gauss and Weber supplanted the optical contrivance on the line between Trèves and Berlin. The first line in America was laid from Washington to Baltimore in 1844. The first attempt at submarine telegraphy was made at Portsmouth in 1846, and in 1850 a cable was laid between England and France. It was precisely in this year when men's minds were excited over the wonderful powers of the galvanic current, and a wide prospect was opened of its future advantage to men, when, indeed, the general public understood very little about the principle and were in a condition of mind to accept almost any scientific marvel, that there appeared in Paris an adventurer, who undertook to open communications between all parts of the world without the expense and difficulty of laying cables of communication. The line laid across the channel in 1850 was not very successful; it broke several times, and had to be taken up again, and relaid in 1851. If it did not answer in conveying messages across so narrow a strip of water, was it likely to be utilized for Transatlantic telegraphy? The _Presse_, a respectable Paris paper, conducted by a journalist of note, M. de Girardin, answered emphatically, No. The means of communication was not to be sought in a chain. The gutta percha casing would decompose under the sea, and when the brine touched the wires, the cable would be useless. The Chappe telegraph was superseded by the electric telegraph which answered well on dry land, but fatal objections stood in the way of its answering for communication between places divided by belts of sea or oceans. Moreover, it was an intricate system. Now the tendency of science in modern times was towards simplification; and it was always found that the key to unlock difficulties which had puzzled the inventors of the past, lay at their hands. The electric telegraph was certainly more elaborate, complicated and expensive than the optical telegraph. Was it such a decided advance on it? Yes--in one way. It could be worked at all hours of night and day. But had the last word in telegraphy been spoken, when it was invented? Most assuredly not.