At first laid with hesitation underneath the rivers, it was next carried beneath narrow seas, and at last plunged into the ocean and passed from continent to continent. Compare its feeble beginning with its achievement of to-day. Think of the uncertainty with which, after weary months upon dusty Maryland roads, the last link of that first line was closed, and then think of the exultation with which great ships in mid-ocean brought up from the bottom of the sea a cable lost two miles down, and the problem was forever solved, not only that an ocean-telegraph cable was possible, but that it could not be so lost as that it might not be found. Standing in the presence of the great inventor, I am constrained to congratulate him upon the fulness of his triumph as he remembers the early effort, and contrasts it with the marvels of this night in this hall. That little instrument, no larger than the clock upon the chamber mantel, and making as little noise, is yet speaking to both America and Europe; and what it says will be printed before the dawn, and laid at morning under the eyes of millions of readers. Did I say before the dawn? It will meet the dawn in its circuit before it reaches the confines of eastern Europe. In the opposite quarter, we know that the message which has just left us for the West will outstrip the day. Even while I have been speaking, the message has crossed the Mississippi, passed the workmen laying the farthest rail of the Pacific road, bounded over the Sierra Nevada, and dashed into the plains of California, as the last ray of to-day's sun is fading from the shore, and the twilight is falling upon the Pacific Sea. It is, however, not alone its history which justifies us in predicting for the telegraph indefinite extension. Its essential character must sooner or later carry it to every part of the habitable globe. Of all the agencies yet vouchsafed to man, it is the most accessible and the most potent. While the machinery itself is simple and cheap, the element from which it is fed is abundant and all-pervading. It is in the heaven above, in the earth beneath, and in the water under the earth. You take a little cup and pass into it a slender wire, when lo! there comes to it a spark from air and water, from the cloud and the solid earth, which the highest mountains cannot stop, nor the deepest seas drown, as it dashes on its fiery way, indifferent whether its errand be to the next village or to the antipodes. No other voice can speak to the far and near at the same time. No other hand can write a message which may be delivered within the same hour at Quebec and at Moscow. By no other means may you converse at once with the farmer of Illinois and the merchant of Amsterdam, with the German on the Danube and the Arab under his palm.