PHOTOGRAPHY OF THE LARYNX. 



399 



ject is about 2-J octaves. Therefore, at that rate of lengthening, 

 the vocal bauds would increase nearly ^ inch if their length was 

 progressively increased while singing up the scale from the lowest 

 to the highest note. This progressive increase in length does not, 



No. 1. 



FIG. 222. PAIR 2. 



No. 2. 



however, occur, and the reason is apparent in Fig. 223, which 

 shows the changes which took place in the larynx at the lower 

 break in the voice, which, in this subject, occurs at F sharp, treble 

 clef, first space. 



No. 1. 



FIG. 223. PAIR 3. 



No. 2. 



" The changes which occur at this point are extremely inter- 

 esting and instructive. In the transition from the lower to the 

 middle register, from E to F sharp, in the voice of this subject, 

 the vibratory portions of the vocal bands are shortened about ^ 



