this case, the right front leg and the left hind leg operated by the right diagonal effect; that is to say, by the opposition of the right rein and the attack of the left spur. The right diagonal biped is now up. Then follows the opposition of the left rein and the attack of the right spur, which force the right diagonal biped to return to the ground before the left diagonal biped can be raised. The left diagonal biped now lifts by the same effects as the right and in the same cadence, and we have two steps of the passage. Again, right rein and left spur, and the left diagonal biped returns to the ground as the other lifts. Once more comes the left rein and the right spur, the bipeds reverse, and we have four steps of the passage.
The essential means are, evidently, the attacks of the spurs. At the first touch, the horse is surprised. At the second, the surprise is increased. At the third, the animal becomes worried. At the fourth, he is very near to a revolt, because he does not understand what his rider asks. If now the rider continues the attacks, the horse will be driven into a complete revolt. The spurs will bleed him. He has no idea what it all means. This will be utter brutality, without the slightest chance of success.
Sometimes the animal, all at sea as to what is wanted of him, goes crazy. As Fillis expresses it, "He plays his all, and completely loses his head." In that condition, he may be dangerous, not only at the time, but for the future. One must, therefore,
