...mething to turn up" to give employment to two roving pens. Suddenly a dull, booming sound came to our ears from the direction of our batteries on the Potomac. "There's a gun," said my friend " Personne ," who was quietly smoking his Havana; "and another, and another," as the reports reverberated through the air in quick succession. Every moment the firing increased, until the sounds run into each ...