At halt or walk the whole seat was loose, but as the pace increased at trot or canter the {143} thighs locked with a grip of tremendous power, rigid save for the play of the skin. From the waist upward the poise was quite erect, and supple, with the shoulders slightly eased. At a gallop the lower legs wrapped round the horse's barrel, and the movement of the man as seen behind an edge of skyline was like the flight of a bird. For pony racing boys rode instead of men. Since the boys' legs were not long enough to wrap round the horse, the thighs were lifted, nearly horizontal, the lower legs bent sharply back, and a surcingle was strapped across the knees. Still the perch was on the animal's back, and not on the withers, as in the negro gait so much admired under the name of the American racing seat. Was the Red Indian seat straight leg or bent leg? With stirrups it was straight leg. For boy jockeys only the racing gait was bent leg. [Sidenote: The Greek seat] A reference to the sculptures of Pheideas, and Praxiteles (fifth century B.C.) shows that the Greeks rode at slow gaits with the same leg as the Red Indian, but like him bent the knees very sharply at racing speed. At first sight these Greek sculptures from the Parthenon rather remind one of the Red Indian seat. A little closer study shows that {144} the models chosen by the sculptor were not horsemen, but carefully selected athletes. They were no more horsemen for example, than the glorious athlete represented at high tension by Watts in his equestrian statue of Physical Energy. The back is too much curved for that of the Red Indian, who earned a living on horseback from his childhood, and kept a professional watch on the horizon rather than an amateur's nervous observation of the pony's ears. So one turns away from the misleading splendours of Greek sculpture, to the professional guidance of General Xenophon, a horseman who knew his business. "Whether he uses a cloth or rides on the bare back we would not have him sit as one who drives a chariot" (bent knees), "but as if he were standing erect with his legs somewhat astride, for thus his thighs will cling closer to his horse, and he will be able to wield his lance and shield with more force."