134 THE IMPROVED ART OF FARRIERY. 



indeed the only things likely to produce a healthy 

 action of the ulcerated surfaces. 



Mr. Lawrence recommends that we should " take a 

 small piece of thin India paper, spread over with some 

 butter or lard, then sprinkle about ten grains of corro- 

 sive sublimate, finely powdered, over the surface of the 

 paper and roll it up into as thin a roll as possible, and 

 introduce it into the Quittor as far as it vdll go. 



" The horse's head should be tied up for a few hours 

 to prevent him from rubbing it with his mouth, and 

 the tent should be left within the ulcer for three or 

 four days, at the expiration of w^hich time it may be 

 taken out and the diseased part will follow it ; after 

 which it becomes a simple wound, and requires nothing 

 more than to be kept clean and defended from the air 

 by a bandage around it." 



As in Sandcrack, the horse requires great rest during 

 the progress of this disease ; indeed, much danger is 

 attendant on allowing the animal to work at such a 

 time. A perfect knowledge of the anatomy of the foot 

 is requisite in this case as in most diseases connected 

 with the legs and feet of a horse. 



CANKER. 



There are several opinions entertained respecting this 

 harassing and tedious disease ; some practitioners 

 asserting it is constitutional, others again considering it 

 essentially local. Be this as it may, certain it is, we 

 often find it the sequent to some other disease of 

 the foot, especially grease, quittor, a^d thrush. Not 

 unfrequently, however, it originates from carelessness 



