Take him in a light stable, as you did to ride him; take the harness and
go through the same process that you did with the saddle, until you get
him familiar with it, so that you can put it on him, and rattle it about
without his caring for it. As soon as he will bear this, put on the
lines, caress him as you draw them over him, and drive him about in the
stable till he will bear them over his hips. The lines are a great
aggravation to some colts, and often frighten them as much as if you
were to raise a whip over them. As soon as he is familiar with the
harness and lines, take him out and put him by the side of a gentle
horse, and go through the same process that you did with the balking
horse. Always use a bridle without blinds when you are breaking a horse
to harness.