her times.

Before starting on the day's hike drink all the water you can and fill
your canteen with water only.

Be sure your canteen does not leak.

After starting, do not drink anything until the end of the hike.

Do not eat ice or snow to quench thirst. It will make you more
thirsty. Do not drink large quantities of cold spring water when
heated,--it will give you a very bad bellyache.

Do not drink whiskey or beer, especially in the field. It will weaken
you and favor heat exhaustion, sunstroke, frost bite and other serious
troubles.

Alcohol muddles the mind and clouds thoughts, and so causes a feeling
of carelessness and silliness that may ruin some military plan, or
give the whole thing away to the enemy and with it the lives of
yourself and your comrades.

The soldier who drinks alcohol will be among the first to fall out
exhausted.

If you use tobacco, do not chew or smoke while marching. Tobacco is
only a dope and increases the work of the heart.

A cup of hot coffee is a good stimulant.

=1474. RULE 4. Keep the body supplied with fresh air.= The brain,
kidneys and other internal organs require oxygen (a part of the air)
continually, and if deprived of it for five minutes, the body will
die. Therefore, it is easy to see that we must continually get plenty
of fresh air into the lungs to supply the blood which carries the
oxygen throughout the body. Except in winter time when steam-heated
barracks are filled with sleeping men, it is not, as a rule, difficult
to get all the fresh air we need. The air in a dormitory should smell
sweet and clean, even though warm. Fresh air should be continually
admitted in a way that will not throw a draft on any of the sleepers.

It is much better to sleep in a cold room with fresh air than in a hot
stuffy one.

Fresh air not only prevents consumption, but it will cure mild cases
of consumption without other medicines.

=1475. RULE 5. Keep the body well exercised without exhaustion.=
Exercise is absolutely necessary to good health. Lack of exercise of
any set of muscles will cause them to grow flabby and weak. Outdoor
sports are the best form of exercise, because they use all the body
muscles, and are in the open clear air.

Exhaustion, on the other hand, not only weakens the muscles of the
body, but it also lessens the vital forces and powers to resist germs.

=1476. RULE 6. Keep the body rested by sufficient sleep.= Give the
body enough sleep. Eight hours o