i6o 



with that faulty conformation known as sickle-hams ; is at 

 first soft, and easily reduced by rest and cold applications ; 

 but becomes, when of long standing, hard, owing to the 

 exudation of lymph on the interior of the bursae. Disten- 

 sion of the capsular ligament of the hock-joint, or bog- 

 spavin, is occasionally mistaken for it, but is situated lower 

 down, and cannot so readily be pressed from one side of the 

 limb to the other. Bog-spavins and thoroughpins, however, 

 often co-exist, for the irritation and pressure of serious bog- 

 spavin are apt to induce distension of the contiguous bursse 

 of the tendons. Treat as for windgalls, with cold applica- 

 tions and pressure, followed up by blisters. 



CURB 



Consists of strain of the posterior straight ligament of the 

 hock ; causes tenderness and swelling on the inner and back 

 part of the joint ; occurs, especially in horses, with the os 

 calcis short, and inclining forwards : and requires, like other 

 strains, rest, cold applications, friction, and after a time 

 blistering and firing. 



CAPPED HOCKS 



Usually proceed from kicking ; are generally indicative of 

 vice ; consist in infiltration of serum into the subcutaneous 

 cellular tissue about the point of the hock ; lead to thicken- 

 ing of the integuments, but seldom cause lameness. Their 

 appropriate remedies are pressure, with wet bandages, blis- 

 ters, or a little of the ointtnent of the biniodide of mercury, 

 or, in bad cases, puncturing. 



BOG-SPAVIN 



Consists in distension of the hock-joint, with an excessive 

 secretion of dark-colored thickened synovia, mixed with 

 lymph. The delicate synovial fringes which secrete the 



