...s giving the train, at a distance, when viewed from a slight elevation, the appearance of a monster white boaconstrictor, which crawled slowly but surely along. Upon arriving at St. Martinsville, Colonel Chickering learned from his spies, and from those worthless negroes that Copperheads talk so much about, that the enemy were in ambush just beyond his advancing scouts. He at once crossed the Teche, and march...