CHAPTER XV. DOWN UPON THE SUWANEE RIVER.THE RICH FOLIAGE OF THE RIVER. — COLUMBUS. - ROLINS' BLUFF. — OLD TOWN HAMMOCK. - A HUNTER KILLED BY A PANTHER. — DANGEROUS SERPENTS. — CLAY LANDING. — THE MARSHES OF THE COAST. — BRADFORD'S ISLAND. — MY LAST CAMP. — THE VOYAGE ENDED.