Going to the rail be gave a curt command and immediately the crew of the rowboat scrambled up the ladder and ranged themselves in line before him, a coal-black and burly darky at one end and a miniature mulatto of four feet nine at to other. They seemed to be uniformly dressed in some sort of blue costume ornamented with dust, mud, and tatters; over the shoulder of each was slung a small, heavy-looking white sack, and under their arms they carried large black cases apparently containing musical instruments.