...t to perform blockade duty, which at that moment, owing to the paucity of vessels, was very arduous. Commander John Rodgers was sent with the Seneca and Paulina to examine the enemy's defences on Tybee Island , in the Savannah River, and ascertained that all the works in that quarter had been abandoned, except those at Stono Inlet. Commander Drayton, in the Pawnee, accompanied by one or two gunboats, e...