124 THE ORANGE COUNTY 



of the tumor, and occasionally firing will be requisite to 

 complete the cure. Near the fetlock, and where the tendons 

 are exposed to injury from pressure or friction, little bags or 

 sacs are placed, from which a lubricating mucous fluid con- 

 stantly escapes. In the violent tasks which the horse occa- 

 sionally has to perform, these become bruised, inflamed, 

 enlarged, and hardened, and are termed 



Windgalls. 



They blemish the horse, but are no cause of lameness after 

 the inflammation has subsided, unless they become very much 

 enlarged. The cautery will then be the best cure. Immedi- 

 ately above the hock, enlargements of a similar nature are 

 sometimes found, and as they project both inwardly and out- 

 wardly, they are termed 



Thorough-pins. 



They are seldom a cause of lameness; but they indicate 

 great, and perhaps injurious, exertion of the joint. On the 

 inside of the hock a tumor of this kind, but of a more serious 

 nature, is found. It is one of these enlarged mucous bags, 

 but very deeply seated, and the subcutaneous vein of the 

 hock passing over it, the course of the blood through the 

 vein is thus in some measure arrested, and a portion of the 

 vessel becomes distended. This is a serious evil, since, from 

 the deep-seatedness of the mucous bag, it is almost impos- 

 sible to act effectually upon it It is termed 



Bog, or Blood Spavin. 



The cellular tissue which fills the interstices of the va- 

 rious organs, or enters into their texture, is the seat of 

 many diseases. From the badness of the harness, or the 

 brutality of the attendant, the poll of the horse becomes 

 contused. Inflammation is set up; considerable swelling 

 ensues; an ulcerative process soon commences, and chasms 

 and sinuses of the most frightful extent begin to be formed. 

 The withers, also, are occasionally bruised, and the same 

 process takes place there, and sinuses penetrate deep be- 

 neath the shoulder, and the bones of the withers are fre- 

 quently exposed. These abscesses are termed 



