CHAPTER Vr. 



OPERATIONS, Eia, ETC. 



SETONS, 



Setons are useful in various cases in abscesses, sndi as 

 occur in poll evil ; in deejj fistulous wounds they are in- 

 dispensable. They promote discharge in the neighbor- 

 hood of an inflammation. They are made of tow and 

 horse hair> braided together,, or a small cord or a strap 

 of leather may be used ; they are inserted by means of 

 an instrument resembling a large needle, either through 

 abscesses, or the base of ulcers with deep sinuses, or be- 

 tween the skin and the muscular or other substances be- 

 neath. They are retained there by the ends being tied 

 together, or by a knot at each end. The taj^e is movec 

 in the wound twice or thrice in the day, and occasionally 

 wetted with spirits of turpentine, or some acrid fluid, in 

 order to increase the inflammation which it produces, or 

 the discharge which is intended to be established 



In inflammation of the chest or intestines, a rowel is 

 preferable to a seton, where the inflammation has long 

 continued, but not intense. Rowels will be serviceable 

 by producing an irritation and discharge. The action of 

 rowels is slower than setons or blistering. 



CASTE ATI ON. 



Youatt says'^ For the common agricultural 

 horse the age of four or five months will be the most 

 proper time, or, at least, before he is weaned. Few 

 horses are lost when cut at that age. 



K 



