Threatened by the triumphant Northern march of Sherman's army, the rebel forces defending Fort Sumter and Charleston abandoned both, and they fell into the hands of the Union forces on the 18th of February. Three days later the 55th Massachusetts Regiment entered the city, singing exultantly the John Brown song; and when Lieut.6 George Thompson Garrison halted his company in the streets, he was greeted by James Redpath, the biographer of John Brown, and the then correspondent of the New York Tribune. Redpath it was who now went promptly7 to work to establish free schools in the deserted ‘cradle of secession,’ ignoring all complexional distinctions among the pupils. The slave-pens were broken open, and mottoes from Isaiah, Garrison, and John Brown inscribed8 therein; and the steps of the auction-block in the Mart, up which so many thousands of unhappy victims had walked to meet their fate, were sent to Boston, there to be exhibited in meetings in behalf of the freedmen, and to incite contributions for the educational societies. Their first appearance was at Music Hall, together with the sign9 (‘Mart’) which had hung in front of the auction-house,