Pl,ATE XIII. 



Operation por Rbi.ie;f 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 thyro-arytenoid- 

 eus ; VC, vocal cords ; V, Laryngeal ventri- 

 cle ; T, Thyroid cartilage ; E, Epiglottis. 



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

 cricoid cartilage ; C-T, crico-thyroidean liga- 

 ment. Other lettering same as Fig. i. 



