The Operation for Roaring. 



153 



Any blood that lodges in the trachea can be removed by 

 large or small (handled) sponges, which may be passed to 

 the operator by an assistant, who receives and washes 

 them. As the horse is now breathing through the wound, 

 the chloroform bag may be removed, being no longer 

 necessary. 



Fig. 20.— Left-side Section of Larynx, showing the Parts 

 Excised in the Operation for Roaring. 



It is always advisable to examine the interior of the 

 larynx carefully, in order to- ascertain its exact condition, 

 as there may be something more than an immovable 

 cartilage. For this purpose Raymond's lamp is invaluable. ^ 



The left arytsenoid cartilage may be excised by com- 

 mencing at the lower convex border (Fig. 20, '2), or at the 



