206 POLL EVIL. 



The tumour having been freely opened, the ab- 

 scess should be carefully examined with a probe, and 

 the deepest part of it ascertained ; and through that a 

 seton may be passed, coming out on the side of the 

 neck below the tumour. Two objects will thus be 

 accomplished ; no matter will lodge at the base of the 

 abscess, for it will run out as rapidly as it is formed ; 

 and the internal surface of the ulcer will be disposed 

 to fill up. 



The tumour should be daily examined ; in order to 

 discover whether there are any little pipes running 

 from the interior of the sac. Very often numbers of 

 these are found; and while one is left the wound will 

 never close. Therefore, wherever one is discovered, 

 a seton may be passed through it. Setons may be 

 inserted in this way through every distinct sinus; 

 only care is required to keep the lower opening free 

 by daily moving the tape. 



This being accomplished, the course is simple ; and 

 a speedy and complete cure will sometimes be 

 effected. In most cases it will be sufficient to wash 

 the wound well out with the stronger solution of the 

 chloride of zinc. This will sweeten the part, which 

 usually smells most abominably. It will also prevent 

 the sprouting of fungus : and being changed for the 

 weaker solution will favour the secretion of healthy 

 pus. Nothing more will be required : but if the case 

 does not go on favourably, repeat the examination ; 

 for there remains something which necessitates the 

 knife to be again employed. 



The scalding mixtures, to which so many farriers 

 cruelly resort, are always injurious. They destroy 



