...id might be given from a battery on Venus Point of Jones's Island, two miles from Cockspur, in the opposite direction. While waiting orders from Washington on the subject, the Forty-sixth New York, Colonel Rosa , was sent to occupy Big Tybee. At about this time explorations were made by the Nationals for the purpose of finding some channel by which gun-boats might get in the rear of Fort Pulaski. Lieute...