Show ATLANTIC PROJECT the N Y correspondence of the charleston mercury in his letter of may writes mr cyrus W field left for england in the persia today to day to advise and assist the tha london atlantic telegraph company in the manufacture of a new ocean cable for a third experiment tiet next summer the form of cable vi aich will be adopted will probably be somewhat smaller than the last one and will be composed of parallel iron wires ins of twisted the single conducting copper wire shirey the guta percha insulation and the outside bandage of oakum and tar will be the tha same as before it is is still believed by many intelligent mechanics that a simple copper wire about three tunes times as large as the one previously wee securely sucu rely insulated and stoutly wrapped about with a thick coating ot of oakum and tar would be far better than any other kind of cable that could be devised it would be much lighter could be paid out like a rope without snarling and would be sufficiently strong and substantial a t to 0 resist all the strains to chih it would be subjected ejected and once in its quiet ocean bed would last sat forever forcier fo reier an energetic man like mr field will soon communicate his enthusiasm to the commercial world and look for a speedy revival on both sides of the water of the profound public interest and cordial cooperation in m this third gallant endea endeavor which AD ic h w were C re called out Is last s t year and the year before |