I am sitting erect.
QUESTIONS FOR THE FORMULA.
1. Tell about your body.
2. Name the parts of the body.
3. Name the parts of the head, trunk, and limbs.
THE NOSE AND THE MOUTH.
Be sure to keep your mouth closed when you are not talking or singing, especially when you are walking, running, or asleep. The two nostrils are outside doors, always open to admit the air, and inside of the upper part of the nose there are two other openings, through which it passes into the throat. Air which goes this way is warmed, cleansed, and moistened, but that which is breathed directly through the mouth is not so well prepared for its work in the lungs.