become accustomed to it and
learn the tricks of the outdoor sleeper, you simply need more covers.
In winter, the bed should be made up with light summer blankets in
place of sheets, which would become very cold. Use, as a night cap, an
old sweater or skating cap. A good costume consists of a flannel
shirt, woollen drawers, and heavy, lumberman's stockings. With such an
outfit and plenty of covers, one can sleep out on the coldest night
and never awaken until the winter's sun comes peeping over the hill to
tell him that it is time to get up.

Besides fresh air, another important thing in keeping well is to eat
slowly and to chew your food thoroughly. Boys and girls often develop
a habit of rapid eating because they are anxious to get back to play
or to school. Slow eating is largely a matter of habit as well, and
while it may seem hard at first it will soon become second nature to
us. Remember to chew your food thoroughly. The stomach has no teeth.
We have all heard of Mr. Horace Fletcher, that wonderful old man who
made himself young again by chewing his food.

There is no fun in life unless we are well, and a sensible boy should
realize that his parents' interest in him is for his own benefit. It
may seem hard sometimes to be obliged to do without things that we
want, but as a rule the judgment of the older people is better than
our own. A growing boy will often eat too much candy or too many sweet
things and then suffer from his lack of judgment. To fill our stomachs
with indigestible food is just as foolish as it would be to put sand
in the bearings of our wheel, or to interfere with the delicate
adjustment of our watch until it refuses to keep time.

While we play, our muscles are developed, our lungs filled with fresh
air and the whole body is made stronger and more vigorous. Some boys
play too hard. Over-exertion will sometimes cause a strain on the
delicate machinery of the body that will be very serious in after
life. The heart is especially subject to the dangers of overstrain in
growing boys. We are not all equally strong, and it is no discredit to
a boy that he cannot run as far or lift as much as some of his
playmates or companions. You all remember the fable of the frog who
tried to make himself as big as the ox and finally burst. The idea of
exercise is not to try to excel every one in what you do, but to do
your best without over-exertion. If a boy has a rugged frame and well
developed muscles, it is