ROARING IN HORSES. 47 



the finish of this stage of the third part of 

 the operation, when the fibres of the thyro- 

 arytenoid muscle are separated, the laryngeal 

 branch of the thyroid artery is cut (fig. i3' A). 

 The bleeding which results is not formidable, 

 and may be arrested by twisting the vessel, 

 or by applying a pair of articulated forceps 

 to its extremity, which should be held by an 

 assistant ; or the operation can be continued 

 without troubling about the matter, but then 

 the operator is constrained in his later 

 movements. 



(c) The arytenoid, lifted and held up with 

 a pair of strong forceps or by hooked forceps, 

 is cut away from the outside inwards, near 

 its postero-superior or articular angle, by 

 means of the probe-pointed bistoury. This, 

 held vertically or in a slightly oblique 

 direction below and forwards, is applied to 



