Plate XV. 

 Operation for Relief of Roaring. 



Fig. I. Longitudinal section through the 

 ventricle of the larynx ; A, arytenoid cartilage ; 

 TA, anterior fasiculus of thyro-arytenoideus 

 muscle ; TA^, posterior bundle thyroarytenoid- 

 eus ; VC, vocal cords ; V, laryngeal ventricle ; 

 T, thyroid cartilage ; E, epiglottis. 



Fig. 2. Sagittal section of the larynx. C, 

 cricoid cartilage. Other lettering same as Fig. i. 



