. In the falsetto register the larynx preserves its natural position, as in quiet breathing.

THE HEAD REGISTER

When in the observation of the falsetto register I had sung upwards to its highest tones, and then sang still higher, I became aware with the fa

of a change in the motions of the organ of singing, and the tones thus produced had a different timbre from the falsetto tones. It required long and patient practice before I finally succeeded in drawing back the epiglottis so that I could see the glottis in its whole length. Not until then was I able to observe the following:

With the fa

, the vocal ligaments suddenly closed firmly together to their middle, with their fine edges one over the other.