Diseases of the Respiratory Organs. 169 



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- 

 sic-)naUy heat, tenderness and even swelling of these paiis, 

 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 fii'st with tepid water and finally with the injectioi]^ 

 recommended for the nose. In the case of parasites 

 these must be rinsed out. Sometimes a shght coUection 

 of this kind will recover under injections for the nose 

 and the persistent use of sulphate of iron or copper, 

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

 recognized by the dropping of food half-chewed, by 

 the swelling and tenderness around the fang of the 

 tooth and by the intolerable foetor 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 oifending tooth driven out with a pimch 

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

 tant vessels and nerves unless the operator is thoroughly 

 conversant with anatomy. 



ABSCESS OF THE EAXSE NOSTKIL. 



This is common in young horses and appears as a slowly 

 uicreasing, 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 witb 

 tow till the raw edges have skinned over. 



ABSCESS IN THE GUTTUBAL POUCHES. 



These are two cavities situated above the throat and \<f- 



