Fill your canteen each evening, as the water wagons sometimes do not
reach camp before the morning march is commenced. Excessive water
drinking on the march is the besetting sin of the inexperienced soldier.
One swallow of water calls for another. Soon your canteen is empty. Your
stomach feels uncomfortable. You are still thirsty. If it is necessary
to replace some of the water of the body which is lost by perspiration,
and this is often necessary, first gargle out the mouth and throat and
spit the water out; then take a swallow or two, but be careful not to
drink to excess. Injudicious and excessive water drinking fills the
hospital ambulances and auto trucks with men who should be in ranks. One
half a canteen of water is sufficient for you on any march you will have
to make. After you arrive in camp and have cooled off a little, drink as
much water as you desire, but do so slowly.