ndications are continued
and increased, the horse will _piaff_, that is, continue collected, in
motion, without progressing, or he will make the courbette or terre a
terre or rear. If both indications are discontinued, he will resume the
extended position of repose. If, again, from this position, both
indications are given, but the retaining the strongest, the horse will
go backward in a collected form. If both are given, but the urging
indication the strongest, he will move forward in a collected form, at a
walk, trot, or canter, according to the vivacity with which the
indications are given.

[Sidenote: Canter, right turn, right pass.]

As far as this is clear enough. But now come some niceties which I am
puzzled to explain. If the retaining and urging indications are given,
but the right rein is felt the strongest, which is the guiding
indication of the hand to the right, and the left leg is pressed the
strongest, which is the guiding indication of the leg to the right, the
horse should either turn to the right, or canter with the right leg, or
he should _pass_, that is, cross his legs and go sideways to the right,
bending and looking to the right. When the _same_ indications are given
it seems monstrous to require the horse to discover which of three
_different_ movements is required of him. In practice the skilful
horseman finds no difficulty in making himself clear to his horse, by
different modifications of the indications, and of the position of his
weight. In theory I can give no rules for it _short enough to be read_.

[Sidenote: Left shoulder in.]

When the horse is passing to the right, if the indications of the legs
are continued the same and those of hands reversed, that is, if the left
rein is felt stronger than the right, the horse changes from right pass
to "_left shoulder in_" (in towards the centre of the school) that is,
he continues to cross his legs and go sideways to the right, but he
bends and looks to the left. As the hands alone make this change, they
may be said to guide here. If, from the left shoulder in, the
indications of the hands are continued the same, and those of the legs
reversed, that is, if the right leg is pressed stronger than the left,
the horse changes from left shoulder in to left pass, that is, he
continues to look to the left, but crosses his legs and goes sideways to
the left. As the legs alone make this change they may be said to guide
here.

These are useful lessons