... surrendered, and sent Abbot, his first lieutenant, on board, who gave his parole for the officers and crew. The ram now abandoned the Mercedita, and joined her consort, which had already engaged Commander Leroy in the Keystone State. Leroy had discovered his assailant in time to get under way and exchange shots. The enemy, uninjured by his fire, succeeded in exploding a shell in his fore-hold, and Leroy...