110 avery's own farrier. 



can not consent that the spavin is incurable, and for this 

 reason: 1 have cured a great many of them, some of 

 which I have known to remain sound through life, while 

 the animal had always been kept at hard work. 



The blood spavin is called by different names by dif- 

 ferent persons, as thorough-pin, flesh and bog spavin, 

 wind puffs, &c., but they are in fact one and the same 

 disease, which may only be called so from the different 

 stages it appears in after it has commenced, and may be 

 known by the enlargement of the tarsus or hock, which 

 is composed of six bones. 



Symptoms. — It may first be seen on the inside of the 

 joint where the skin will only be a very little raised im- 

 mediattly over the large blood vessel, partially hiding it 

 at this place; sometimes it will appear on the outside of 

 the joint like a little puff which gives it the name of tho- 

 rough-pin; and then again it will sometimes spread nearly 

 around the whole joint, which will appear in some cases 

 twice as large as in health, when it is called flesh or bog 

 spavin; but, generally speakings the enlargement is 

 confined to the inside of the joint and is called blood 

 spavin. Betw^een the tendons of the hock there is a 

 little bladder or sack, containing an oily substance, 

 which enables the tendons to slide over without friction. 

 By some strain, either in the effort to get up in the sta- 

 ble and slipping, or other accident, and hard drawing, 

 this little sack, or some little blood vessels of the parts, 

 becomes ruptured, and the matter they contain oozes out 

 by the motion of the joint, collectinii, under the skin, 

 which makes the enlargement called spavin. 



Sometimes the horse is quite lame, and at others only 



