the dunes. The defenders were also distracted by the appearance of four vessels from the Blockading Squadron: the steamers USS Daylight, State of Georgia, and Chippewa, and the bark Gemsbok. Until this time, the Navy had not been involved with the siege, but Commander Samuel Lockwood responded to the sound of gunfire and brought his section of the fleet into action. The weather was not good for a naval bombardment, however; a strong wind created waves that caused the vessels to rock badly enough to disrupt their aim, and after about an hour, the fleet withdrew. The Navy also supplied a pair of floating batteries to the attack, but again the waves interfered, and only one of them got into action. It is not certain whether the fort sustained any hits from the ships. The Confederate return fire was accurate enough to hit two vessels, doing little damage and slightly wounding only one man. The initial fire from the mortars on shore was inaccurate, but a Signal Corps officer in Beaufort, Lieutenant William J. Andrews, acting on his own responsibility, was able to deliver messages to the battery commanders telling them how to adjust their range. After noon, virtually all shots were on target.<ref>ORA I, vol. 9, pp. 291–292. Trotter, ``Ironclads and columbiads, p. 143.</ref> Nineteen guns were dismounted. The walls of the fort began to crumble under the continued pounding, and in mid-afternoon Colonel White began to fear that the magazine would be breached. At 4:30 p.m., he decided that the fort could no longer hold out, so he ordered that a white flag be raised. Firing on both sides then ceased. Colonel White met with General Parke to discuss terms, and Parke at first demanded unconditional surrender. White asked him for more favorable conditions, and referred to the terms that General Burnside had offered on March 23. Parke did not concede, but agreed not to renew the bombardment until he could consult with Burnside. Burnside reasoned that White could hold out at least one more day, and further action would only cause more casualties and greater damage to the fort. He therefore agreed to adhere to his first terms. The men in the fort were allowed to give their paroles, meaning that they would not take up arms against the United States until properly exchanged. They then were permitted to return to their homes, taking with them their