... the rebel batteries at Cockpit and Shipping Points, on the Potomac, this morning, and reached the open sea without having been touched by shot or shell. A Reconnoitering party under command of Lieutenant W. T. Truxton , U. S. N., left St. Helena Sound, S. C., day before yesterday, and visited Bailey's Island, but found it entirely deserted, though well stocked with cattle, sheep, and horses. They visited many fin...