of haunches in, shoulder in, and two track work at a walk and at a slow trot. He takes up the gallop easily on either foot by increasing the gait from the trot. He has found his balance while moving freely to the front, a double condition which is satisfactorily fulfilled if he keeps the reins taut without ever bearing on the hand. His gaits are clean; he can lengthen the walk without jigging and the trot without becoming disunited; his wind has been developed and he can keep up a lengthened gallop for several minutes.
When this entire programme has been carried out and especially when the horse begins to pull on the hand, it is time to take up the double bridle.