J 1 8 TBE FARM DOCTOR. 



may be made with a sharp firm point, and gradually increasing 

 to a considerable bulk (graduated compress), and tied over the 

 wound with the narrow point pressing on the vessel. Or the 

 crince may be seared with an iron at a dull red heat. 



Tearing, stretching, twisti?!g, and scraping through arteries 

 usually lead to retraction of their coats and complete clo- 

 sure, and these measures are sometimes adopted to check 

 haemorrhage. 



ARTERITIS. 



Inflammation of an artery may be external or internal, 

 according as it affects the fibrous sheath or the inner lining 

 membrane. In the external inflammation there may be little 

 danger, even if matter is formed, as the vessel will continue to 

 transmit the blood so long as its inner coat is sound. But in 

 internal inflammation the blood coagulates, layer after layer, on 

 its inner surface until the channel becomes impervious. This 

 may cut off the blood entirely from the part to which the artery 

 was distributed, leading to loss of power and substance, and in 

 the case of the limbs to a lameness, which comes on whenever 

 the anirnal is exercised, and increases with the exertion, but 

 disappears with a short rest of ten or twenty minutes. Or 

 small clots may be loosened from the mass and passing on 

 block smaller trunks, causing circumscribed inflammation at 

 distant parts. 



Causes. — Over-stretching of arteries. Plugging by clots from 

 the heart in endocarditis, or from inflamed veins. Wounds, 

 parasites, etc. 



Symptoms. — Loss of muscular power and coldness of the 

 parts beyond the seat of plugging, extreme tenderness over the 

 line of the vessel at the inflamed point, and sometimes general 

 fever. 



Treatment. — Perfect rest, warm fomentations, laxatives (liorse, 

 ox, and sheep, linseed oil or Glauber salts ; pig and dog, castor- 

 pil), and afterward diuretics and sedatives. 



