...ision of the Fifteenth (Logan's) Corps, passed, and under its cover a pontoon bridge was laid on the morning of the 17th. General Sherman was there, and at eleven o'clock information reached him that Mr. Goodwyn , mayor of the city, with a deputation of the common council, had come. out in a carriage, and made a formal surrender of Columbia to Colonel Stone. There seemed to have been no adequate militar...