200 DISEASES OF THE HORSE. 



vertebrae become diseased ; in which cases a long and 

 narrow knife must be passed up the sinus or pipe 

 leading to the diseased bone, and outwards through 

 the skin along its whole length, when the use of some 

 escharotic lotion will be necessary. If the sinuses are 

 of great length, long seton needles should be passed 

 through them, and depending orifices should be made 

 in the most convenient spot. The strength of the 

 lotion of chloride of zinc should vary in proportion to 

 the exigencies of the case — from one to four scruples 

 to the pint of water. 



BROKEN KNEES. 



This is an accident pretty sure to fall to the lot of 

 every owner of horses at some time or other, and it is 

 therefore necessary that every horseman and groom 

 should be equal to its treatment in every stage. In 

 slight cases of broken knees when the cut is not deep 

 the treatment should consist in well washing the wound, 

 so as to remove all irritating and extraneous substances, 

 and then getting the horse into a stable, and bathing 

 the knees in warm water for an hour, after which apply 

 a lint compress soaked in a solution of arnica and warm 

 water — of the strength of one part of tincture of arnica 

 to thirty parts of water — and over this tie some oiled 

 silk. Let this be repeated for the three or four follow- 

 ing days, and the horse's health carefully attended to, 

 when all will be well. If, however, any proud flesh 

 show itself, it should be burnt down by the application 



