The strength of the tone will correspond to the force of the vibrations of the nose and head, which can be plainly felt by resting the finger lightly upon the side of the nose.
The vibrations may eventually be plainly felt on the top and back of the head.
Attack, that is, begin the tone, _softly_ and on no account force it in the least.

Pronounce the full word _at once_, prolong the _ng_ four counts as indicated, and sing the five vowel sounds on a continuous, unbroken tone.

Articulate entirely with the lips and without moving the under jaw.

In this, as in the following exercises, keep the under jaw relaxed and open the mouth so as to separate the teeth as wide apart as is consistent with the action of the lips.

See also the illustrations of proper lip position given at the close of Chapter II.
_Practice this exercise on any pitch easy for the voice._ [Music illustration: Hung-ee-oo-oh-aw-ah _etc._] Repeat this many times until the nose and head vibrations are fully recognized and established.