This man, who was heaving great chunks of wood into the roaring furnace with the strength and ease of a trained athlete, formed no unpleasant picture to look upon himself. He was tall and straight, with a keen, resolute face, an iron-gray, military moustache, and close-cropped hair. He looked not only like a soldier, but like one well accustomed to command. At the same time he obeyed promptly, and without question, every order issued by the young engine-driver on the opposite side of the cab.