PHOTOGRAPHY OF THE LARYNX. 401 



change in the mechanism of the vocal bands the epiglottis is 

 raised higher than in the register below. I am of the opinion 

 that it is usually depressed. The reason for this belief is that, 

 with very few exceptions, I have found it lower in the photo- 

 graphs showing the change than in those representing the note 

 preceding it. When the voice of this subject broke into the 

 middle register it was with difficulty that T could get the epiglottis 

 to rise as high as it is shown here, which, though high enough to 

 show the anterior insertions, is not so high as it was before the 

 break. There does not seem to be any difference in the width of 

 the vocal bands, but in this particular the appearances vary, the 

 variation being due to the position of the ventricular bands. The 

 entire upper surfaces of the vocal bands are rarely exposed to 

 view during the production of the middle and upper notes. 



No. 1. No. 2. 



FIG. 224. PAIR 4. 



" As this singer ascends the scale above the break at F sharp, 

 the vocal bands are increased in length and the chink gradually 

 enlarges, as shown in Fig. 224. The first photograph is of the 

 larynx while singing F sharp, treble clef, first space, the note on 

 which the lower break occurred, and the second while singing D, 

 treble clef, fourth line, which is the highest note in the middle 

 register of the voice of this singer. The difference in the length 

 of the vocal bands and width of the chink of the glottis, as the 

 voice mounts from the lowest to the highest note of the middle 

 register, is clearly shown. Not only is it shown that the vocal 

 bands increase in length as the voice ascends the scale, but the 

 cartilaginous portion of the glottis which, while producing the 

 lowest note of this register, is seen to be tightly closed has 

 begun to open again, as shown by the small triangular opening 

 which has appeared between the arytenoids in the second of this 



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