...egro population. They marched through the town in procession, numbering over four thousand persons, headed by a band of music, carrying the Union flag, cheering for the downfall of slavery, etc. At Beaufort, S. C. , the day was celebrated by the freedmen, by an excursion up the Beaufort River to the encampment of the First South-Carolina colored volunteers, where they were addressed by Brigadier-General Saxton,...