DISEASES AM) AII.MKNIS Ol IIOKSKS, ETC. 141 



lie comos to tlio conclusion tli.at the horse he has 

 bouglit wai-rantcd as sound is unsound, and takes 

 steps to get back his money when too late. It is 

 a case of chronic laminitis ; but the horse is re- 

 jected, after too long a delay, to obtain any 

 remedy. The buyer of a horse Avith suspiciously 

 contracted forefeet, or with a thrush, or with 

 leather-shod forefeet, should always requii-o a 

 warranty to last a fortnight. 



Tinirsii is an offensive discharge from the cleft Thrush, 

 of the frog, which rots away the frog and causes 

 the horse to feel tenderness when treading on a 

 stone. It is produced by moisture and filth, and 

 thus it is more common in the hind than the fore- 

 feet. Sometimes it is produced in the forefeet by 

 contraction and fever in the feet. A horse with 

 thrush is unsound. 



Contraction of the Foot.— When this is suffi- Diseases of 

 cient to cause lameness in a horse, the animal is ^^^^' 

 unsound. It is in itself very often the result of 

 imsoundness, more especially of fever in the feet. 

 Eings in the hoofs are often supposed to be marks 

 of uusoimdness ; they may be, but are not neces- 

 sarily so. Eings come on horses' hoofs in this way : 

 when a horse is feverish in the feet or system, be 

 the cause what it may, the hoof gets hot and dry 

 and does not grow. As the fever lessens, or, as 

 the body cools from other reasons, such as bein"- 



