Destruction at Columbia.On the 16th of February Sherman was opposite Columbia. A few shells had been thrown into the city, but it was never under bombardment. But on the morning of the 17th the mayor had come out to surrender the city, and before the troops had entered a high wind was carrying about flakes of cotton that had in some manner become ignited. With the aid of an old fire-engine the soldiers endeavored to put out the conflagration, but much property was destroyed. In the afternoon the wind moderated and the fire was controlled.