A Long Stretch

The new Ailantio eable, which ia now in procesa of manufacture in England, to be laid next summer, is to be Ü.300 miles long, allowing four or five hundred miles for all contingencies ; and its core, through which the eleotrioity pasee, ia to be composed of aoven strands f the beit oopper wire, making together oer 16,000 miles of oopper wire; bis is to be enolosed in eight coats of inaulating material, amounting to 18,400 milei ; tbn follow ten ooatings of jute, making 23,000 miles-; and ten iron wires, making 28,000 more ; and as eaoh wire is ooTared ieparately with five twists or itrands of yarn, there will be worked into the oable 135,000 miles of yarn ; making all together a lenglk of material whioh amounts to 213.5001 miles ; or ufficient, if plaoed end to end, to go around-the earth nearly nine time, and lacking only 21,500 miles of being enough to reach from the earth to the mooi) - the latter distance being, as memured by astronomtrs, '237,000: