In obedience to an order from the captain our men cast loose a pair of swivel guns, for it was evident that the buccaneer was getting out of range, and her shots no longer disturbed the water.  Far from destroying the man, the discharge of her ordnance had proved his salvation; so our captain resolved to act likewise and plant shot after shot close to him, so as to frighten off these tigers of the deep, while our men waved encouragingly to the swimmer.