After you have mastered the jog, it will be time enough to quicken the
pace into a run, not your swiftest run, mark you, but a run that you
can keep up for a mile, with as little exhaustion as you did your
first mile trot.

It is only by this slow, pleasant training, that you can ever learn to
walk and run well, but when you have learned you will be paid for the
effort, and then if the time comes to test your speed you will be
ready to respond.

Jumping is closely related to running. It is an exercise in which boys
delight, but which they seldom practice so as to achieve any skill.

We divide this exercise into standing and running jumps, and each of
these can be subdivided into high and broad jumps.

In running contests, hurdles or other obstructions are placed in the
path of the runner. These hurdles vary in height, but if you want to
learn, start in with one or two about as high as your knee. Of course,
you could take them standing, and it is not a bad exercise, but learn
to take them at a moderate run. When you can do this with ease,
increase the number or the closeness of the hurdles and add to the
length of the run.

After a time you can take more and higher hurdles and lengthen the
run, but never do either if you find your heart beating, or that the
effort brings fatigue.

I do not think the running high jump pays for the effort. It is