Diseases of the Bespiratory Organs. 77 



the nose, foetid if long retained, and above all if from a dis- 

 eased tooth, a dullness on percussion on that side of the 

 face between the eyes or just beneath the eyes, and occa- 

 sionally heat, tenderness and even swelling of these pai-ts, 

 especially below the eye. 



Treatment. Trephine the bone to one side of the 

 median line of the forehead, in the interval between the 

 eyes, and again, an inch above the end of the bony ridge 

 which extends down beneath the eye, and wash out daily, 

 at first with tepid water and finally with the injection 

 recommended for the nose. In the case of parasites 

 these must be rinsed out. Sometimes a slight collection 

 of this kind wiU recover under injections for the nose 

 and the persistent use of sulphate of iron or coppei', 

 or other tonic. If there is a diseased tooth it will be 

 recognized by the dropping of food haK-chewed, by 

 the swelling and tenderness around the fang of the 

 tooth and by the intolerable fcetor which clings to the 

 fingers when a balling iron has been placed in the mouth 

 and the tooth examined with the hand. Such a tooth 

 must be extracted with large forceps, if already loosened, 

 or if not, an opening should be made upon its fang with a 

 trephine and the ofi'ending tooth driven out with a punch 

 and mallet. But there is much danger of injuring impor- 

 tant vessels and nerves unless the operator is thoroughlj 

 conversant with anatomy. 



ABSCESS OF THE FAIiSE NOSTEIL. 



This is common in young horses and appears as a slowly 

 increasing, inactive, tense, round swelling in the outer 

 part of the nostril. It is so firm as to feel solid but col- 

 lapses at once when opened. It should be laid open from 

 within the nose along its whole length and plugged witl; 

 tow till the raw edges have skinned over. 



ABSCESS IN THE GUTTURAL POUCHES. 



These are two cavities situated above the throat and pe- 

 7* 



