ROARING OPERATION. 71 



eluded in the tenaculum forceps tense, dissect the vocal 

 cord and mucous membrane from the underlying parts 

 from behind forward toward the apex of the arytenoid car- 

 tilage and continue the two incisions forward until the ven- 

 tricle has been passed when they are made to converge and 

 finally meet, thus isolating completely the mucous mem- 

 brane of that depression. Should the tension upon the 

 vocal cord and mucous membrane by means of the tenac- 

 ulum forceps be too great they may tear asunder in which 

 case the remnants must be grasped by means of the tenac- 

 ulum forceps or better with the long dressing forceps and 

 the operation continued. The mucous membrane should 

 be carefully trimmed around the margin of the wound and 

 care should be taken to not remove entirely the renmants 

 of the wasted thyro-arytenoideus muscle because that tends 

 to permit the cartilage to drop down too low in the larynx 

 nor should the incision in the ventricle be carried deeper 

 than the mucous membrane lest we wound important ves- 

 sels and produce annoying hemorrhages. Remove all blood 

 clots and disinfect the parts. Apply no sutures to the 

 wound in the vocal cords, mucosa or larynx. After the 

 animal has recovered from the anaesthesia, cleanse the' ex- 

 ternal wound carefully and wash it daily with an antiseptic 

 and if thought best apply this also to the wound in the vo- 

 cal cord by means of saturated absorbent cotton grasped 

 with the long dressing forceps and pushed up to the area 

 through the laryngeal incision. Cleanse the trachea tube 

 daily and keep in position from six to ten days or longer, 

 should the animal show difficulty in breathing when it is 

 removed. 



