Show Cables Acro Across Atlantic The first attempt to lay a cable across the Atlantic In 1857 ended In failure when heD the cable broke at a depth ot of 2000 fathoms In 10 August a cable was vas successfully laid between Valentin Ireland and heart Beart s a Content e 1 There are twenty one cables across tile the Atlantic between bet North Amero- Amero lea Ica and Europe The outside diameter eter ot of the ordinary sea deep sea tylli ot of cable Is about one Inch and the weight In the aIr about two tons per nautical mile The shore end types run as large as three and one halt Inches In diameter and weIgh neigh as much as thirty tons per nautical mIle |