AMONG THE fifty-eight regiments of Zouaves and the seven regiments of Lancers enlisted in the service of the United States between 1861 and 1865 it will be useless for the reader to look for any record of the 3d Zouaves or of the 8th Lancers. The red breeches and red fezzes of the Zouaves clothed many a dead man on Southern battle-fields; the scarlet swallow-tailed pennon of the Lancers fluttered from many a lance-tip beyond the Potomac; the histories of these sixty-five regiments are known. But no history of the 3d Zouaves or of the 8th Lancers has ever been written save in this narrative; and historians and veterans would seek in vain for any records of these two regiments-regiments which might have been, but never were.