Mounting from a high horseblock is a matter of being fairly lifted into the saddle, and you cannot possibly do it improperly. it is easy, but it gives you no training for rides outside the school, and masters use it, not because they approve of it, but because their pupils, not knowing how easy it is to mount from the ground, often desire it.
But, being in the saddle, turn so as to face your horse’s head, put our right knee over the pommel, and slip your left foot into the stirrup. Then rise on your left foot and smooth your skirt, a task in which your master will assist you, and take you reins and your whip from him.
How shall you hold your reins? As your master tells you! Probably, he will give you but one rein at first, and very likely will direct you to hold it in both hands, keeping them five or six inches apart, the wrists on a level with the elbows or even a very little lower, and he is not likely to insist on any other details, knowing that it will be difficult for you to attain perfection in these. An English master might give you a single rein to be passed outside the little finger, and between the forefinger and the middle finger, the loop coming between the forefinger and thumb, and being held in place by the thumb. Then he would expect you to keep your right shoulder back very firmly, but a French master will tell you that it is better to learn to keep the shoulder back a little while holding a rein in the right hand, and an American master will usually allow you to take your choice, but, until you have experience, obey orders in silence.
And now, having taken your whip, draw yourself back in your saddle so as to feel the pommel under your right knee; sit well towards the right, square your shoulders, force your elbows well down, hollow your waist a little, and start. He won’t go? Of course he will not, until bidden to do so, if he know his business. Bend forward the least bit in the world, draw very slightly on the reins, and rather harder on the right, so as to turn him from the stand, and away he walks, and you are in the ring. You had no idea that it was so large, and you feel as if lost on a western prairie, but you are in no danger whatsoever. You cannot fall off while your right knee and left foot are in place, and if you deliberately threw yourself into the tan, you would be unhurt, and the riding-school horse knows better than to tread on anything unusual which he may find in his way.