...regiments and a battery of field-artillery under the fire of our gunboats. About the thirteenth of May, the steamer Planter, seized by slaves, came from Charleston. They brought the news that the Stono River was open and the rebel batteries dismantled there, and corroborated the previous information. And on the sixteenth, five deserters from Fort Sumter, by way of Morris Island, corroborated the above,...