It is a common idea that the chief use of a running martingale is to prevent a horse raising his head too high. We find, however, that when our best flat race and steeplechase jockeys and other good horsemen ride with this martingale, they almost invariably have it so long, that it has little or no effect in keeping the head down. When a horse is prevented from raising his head too high by a standing martingale attached to the rings of the snaffle, he is punished by the tension of the martingale being transmitted to the mouth-piece of the snaffle, if he tries to get his head in the air; but the moment he brings his head down and bends his neck, cessation of the painful pressure will reward him for his obedience. This automatic means of dispensing punishment and reward is so accurate in its working, that a horse soon learns the lesson set before him. But with a running martingale, the rider, in order to reward the horse for bringing his head into proper position, would have to slacken out the reins with a promptness that would be seldom attainable, and with an entire disregard of control over the animal. In fact, with a running martingale, adjusted so as to prevent the horse from getting his head too high, the reins would have to perform the dual office of keeping down the head, and of regulating the speed, which duties could seldom be successfully combined. With a standing martingale, however, the rider can safely relinquish the adjustment of the height of the animal’s head to the martingale, and consequently he is not forced to check the horse’s speed, when he wants to get his head down. Some good horsemen, on finding that the running martingale did not perform its supposed office efficiently, have discarded it altogether, and thenceforth have trusted to their hands to act as their martingale. In this they were right not to use a running martingale to keep a horse’s head down; but they were wrong in thinking that keeping the head down was the only, or even the principal, use of this article of gear. If we closely examine its action, we shall find that the great value of this martingale is to aid the rider in turning a horse by keeping his neck straight, when cantering or galloping, which object is greatly facilitated by the opposite rein exerting a strong pressure on the neck.
In regulating the length of the running martingale, we should carefully guard against making it so short that it would interfere with the horse’s mouth, when he is not carrying his head unnaturally high; for such interference could have no good result, and would probably impede the animal’s movements. Although it is impossible to determine with mathematical accuracy the exact length of this martingale, we find in practice that it should not be shorter than a length which will allow it, when drawn up, to reach as high as the top of the withers. Lengthening it out another three or four inches will generally be an improvement. The use of a running martingale shorter than the minimum I have just laid down, more or less irritates the horse; because, even when he holds his head in correct position, he cannot escape from its disagreeable pressure. The employment of a short running martingale for ’cross country work is a very dangerous proceeding; for if the rider does not leave the reins loose when jumping, the horse will be almost certain to hurt his mouth, and consequently he will be afraid to face his bit, or will become unmanageable from pain, either eventuality being highly dangerous to horse and rider.
ADJUSTMENT OF THE BRIDLE.
The bit is placed in the horse’s mouth, because there is a vacant space (of about four inches in length) on the gums of his lower jaw, between his back teeth and tushes (canine teeth or eye teeth), as we may see in [Fig. 49]. A mare has no tushes, or possesses them in only a rudimentary form. The tushes of a horse begin to appear through his gums when he is about 4 years old. If horses had not this convenient gap (interdental space) in their rows of teeth, we would probably have to guide and control them by means of reins attached to a nose-band, which is a method practised by many American cow-boys when breaking in young horses. Owing to the fact that their nose-band (hackamore) does not hurt the animal’s mouth, and that it gives all the necessary indications, excellent results, I believe, are obtained with it.
