A difficult feat of engineering has l*o.u a«*ron»pIi?hed in stringing telephone wires across the Connecticut at ihr* point above Cromwell known as • |'.low Hole. in the new direct telephone line between New York and Boston. The lowest wires will be about IS. feet above the surface of th** water, so that, there will be no possibility of interfering with navigation a 1 any season of the year. Work on the towers, which are of iron frame-wnrk. has been completed, and men are now .uga£ed in the difficult task of stringing wires across the river, to (-nniifot those already strung overland. 1-Y»rty or fifty wires are to be suspended now. but the number will soon lie doubled.TIMELY TOPICS.