Do this exercise with the thumb nail, but instead of having the whole hand flat on the table, have the fingers curl, so that the side of the hand touches the table, and raise the thumb against the pressure of the finger of the opposite hand twenty times.
EXERCISE 29.
Extend both hands in front of you, palms together, the fingers of each hand held tightly against those of the other, the thumbs separated from the others and pointed toward you.
Raise the elbows from the body, then slowly and with muscular resistance move the palms apart, keeping only the tips of the fingers together. Push hard with the finger tips against each other. Just as slowly and with muscle resistance close the palms again. Repeat this exercise five times.
EXERCISE 30.
Extend the left hand and spread the fingers and thumb as far as possible. Slowly, and with muscular resistance, bring the tip of the first finger and the tip of the thumb together, forming a circle. Return to the original position. Repeat ten times.
Do this exercise with each of the other fingers of the left hand, and then with each of the fingers of the right hand.