The Story of the Atlantic Telegraph

And now, as the ships are fairly apart, and will soon lose sight of each other, we will leave the Agamemnon for the present to pursue her course toward Ireland, while we follow our own Niagara to the shores of the New World. At first of course, while all hoped for success, no one dared to expect it. They said afterwards that "Mr. Field was the only man on board who kept up his courage through it all." But the chances seemed many to one against them; and the warnings were frequent to excite their fears. That very evening, about sunset, all again seemed lost. We quote from Mr. Field's journal: "At forty-five minutes past seven P.M., ship's time, signals from the Agamemnon ceased, and the tests applied by the electricians showed that there was a want of continuity in the cable, but the insulation was perfect. Kept on paying out from the Niagara very slowly, and constantly applying all kinds of electrical tests until ten minutes past nine, ship's time, when again commenced receiving perfect signals from the Agamemnon." At the same moment the English ship had the same relief from anxiety. The next day there was a fresh cause of alarm. It was found that the Niagara had run some miles out of her course. Comparing the distance run by observation and by patent log, there was a difference of sixteen miles and a third. With such a percentage of loss, the cable would not hold out to reach Newfoundland. This was alarming, but it was soon explained. The mass of iron in the ship had affected the compass, so that it no longer pointed to the right quarter of the heavens. Had the Niagara been alone on the ocean, this might have caused serious trouble. But now appeared the great advantage of an attendant ship. It was at once arranged that the Gorgon should go ahead and lead the way. As she had no cable on board, her compasses were subject to no deviation. Accordingly she took her position in the advance, keeping the line along the great circle arc, which was the prescribed route. From that moment there was no variation, or but a very slight one. The two methods of computing the distance--by log and by observation--nearly coincided, and the ship varied scarcely a mile from her course till she entered Trinity Bay.