SHOULDER SPBAITT. 517 



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aad leaping. Sprain of the flexor bracMi will sometimes occur 

 to a horse while drawing the plough. If the animal, while so 

 engaged, is compelled to travel with one fore foot iii the furrow 

 and the other out, an unequal stress is necessarily forced upon 

 one shoulder, and spraiu of the tendon is very liable to take 

 place ia consequence. 



Teeatmbttt. — The best remedies and modes of treatment, 

 in general, are — a high-heeled shoe, Arnica lotion, cold water 

 cloths (secured to the part injured). Blisters, Setons, and long 

 rest to the patient in a loose box. 



Sometimes it is necessary to tie a horse up to the rack, and 

 their force him to contiuue, for two or three weeks, without 

 allowing him to lie down. The act of rising from tlie ground 

 is very likely to inflict fresh Lnjury to the tendon of the flexor 

 brachii, when sprained. 



THRUSH— CANKER. 



Thrush, or as it is frequently denominated, Eunning Thrush, 

 is a well known aflection. Its essential outward characteristic 

 consists of a discharge of fetid matter from the middle and 

 sides of the frog. 



The hind feet are more subject to the disease than the fore 

 feet, a fact which perhaps may be explained as follows : — Most 

 horses, when in the stable, have a pernicious habit of standing 

 with the hind feet in their own dung: the dung, in time, 

 becomes an irritant to the foot ; an inflammatory condition of 

 the sensitive tissues of the frog is established, and fetid matter 

 is discharged in consequence.* 



Thrush, Canker, and Grrease are diseases of a closely similar 

 character. Grease, if allowed to continue, will spread to the 

 frog, and Thrush will be established ; while Canker invariably 

 * To prevent bad effects to the feet in consequence of this habit, I recom- 

 mend the hind feet to be always shod with leather. See Section V., page 105. 



