With such preparations, let us see how all this science and seamanship and engineering are applied. The ships are now all together in the middle of the Atlantic. The first point is achieved. They have found the place where the broken cable lies--they have laid their hands on the bottom of the ocean and "felt of it," and know that it is there. The next thing is to draw a line over it, to mark its course, for in fogs and dark nights it cannot be traced by observations. The watery line is therefore marked by a series of buoys a few miles apart, which are held in position by heavy mushroom-anchors, let down to the bottom by a huge buoy-rope, which is fastened at the top by a heavy chain. Each buoy is numbered, and has on the top a long staff with a flag, and a black ball over it, which can be seen at a distance. Thus the ships, ranging around in a circuit of many miles, can keep in sight this chain of sentinels. The buoy which marks the spot where they wish to grapple has also a lantern placed upon it at night, which gleams afar upon the ocean. Having thus fixed their bearings, the Great Eastern stands off, north or south according to the wind or current, three or four miles from where the cable lies, and then, casting over the grapnel, drifts slowly down upon the line, as ships going into action reef their sails, and drift under the enemy's guns. The "fishing-tackle" is on a gigantic scale. The "hooks," or grapnels, are huge weapons armed with teeth, like Titanic harpoons to be plunged into this submarine monster. The "fishing-line" is a rope six and a half inches round, and made of twisted hemp and iron, consisting of forty-nine galvanized wires, each bound with manilla, the whole capable of bearing a strain of thirty tons. Of this heavy rope there are twenty miles on board the ships, the Albany carrying five, and the Great Eastern and the Medway seven and a half miles each. Of course it is not the easiest thing in the world to handle such a rope. But it is paid out by machinery, passing over a drum; and the engine works so smoothly, that it runs out as easily as ever a fisherman's line was reeled off into the sea. As it goes out freely, the strain increases every moment. The rope is so ponderous, that the weight mounts up very fast, so that by the time it is two thousand fathoms down, the strain is equal to six or seven tons. The tension of course is very great, and not unattended with danger. What if the rope should break? If it should snap on board, it would go into the sea like a cannon-shot. Such was the tension on the long line, that once when the splice between the grapnel-rope and the buoy-rope "drew," the end passed along the wheels with terrific velocity, and flying in the air over the bow, plunged into the sea. But the rope is well made, and holds firmly an enormous weight. It takes about two hours for the grapnel to reach the bottom, but they can tell when it strikes. The strain eases up, and then, as the ship drifts, it