130 DISEASES OF ANIMA. S. 



good. Roweling is sometimes practised in s^'^vere ctses, 

 rubbing the seton in blistering ointment, to give more 

 speedy and greater effect ; but generally, hand-rubbing, 

 often and thoroughly, particularly on the legs, will obvi- 

 ate the neces:sity of roweling. 



Blistering is preferred to roweling, as more neat and 

 expeditious. An extensive application should be made 

 over each side the chest. The following is a good blis- 

 ter ointment for this purpose : — Powdered cantharides, 

 five drachms ; lard, four ounces ; spirits of turpentine, 

 one ounce ; or use cantharides with sweet oil or lard. 

 Sometimes the rubbing on of spirits of turpentine is suf 

 ficient, without the blistering application. 



Some distinguished veterinarians object to roweling ol 

 olistering, until the inflammation has abated, as it tends 

 at first to promote it ; others, of equal authority, think 

 these modes may be resorted to, even in the early stages 

 of the disease. This is only one among numerous cases 

 in which we are led to inquire, " "Who shall decide, when 

 doctors disagreed" 



HEAVES — THICK AND BROKEN WIND. 



Under this general term, are classed several affections, 

 (Vequeiitly originating from the same or similar causes ; 

 all affecting seriously the respiration of the horse. There 

 is broken wind and thick wind, which, in their various 

 modifications, and degrees of severity, produce what are 

 ::alled, pipers, roarers, wheezers, whistlers, and grunters. 



Thick Wind. AVhen the lungs are inflamed, there is 

 a great deal of congestion, and many of the air-cells are 

 filled with coagulated blood ; and when they have been 

 long distended, that blood becomes organized, the cells 

 obliterated, and this portion of the lungs a solid mass, 

 unfit for respiration ; of course the act of breathing will 

 be laborious, and more rapidly repeated, to make up the 

 deficiency. This is called thick wind. Sometimes it is 

 a consequence of bronchitis or catarrh ; and then it arises 

 from the lining t)f the air par^sages being thickened by 

 inflammation, which lessens the calibre of the air-tubes, 

 and makes the breathing difficult j and on this accoun 

 ihe breathing will be more rapid as well as laborious. 



