54 MANUAL OF MODERN FARRIERY. 



space for the blood to insinuate itself into tlie cellular 

 tissue ; or working the horse immediately after the opera- 

 tion ; or neglecting to tie up his head for a short while after 

 bleeding to prevent his removing the pressure of the pin 

 from the wound, by rubbing his head against the manger ; 

 and other causes. 



Symptoms. — The edges of the wound having separated, 

 or being ragged, from the clumsiness of the operator in not 

 penetrating the vein at the first blow, become swelled and 

 inflamed, and discharge a thin fluid of a bloody appearance. 

 In a day or two this will put on the form of matter. In- 

 flammation to a considerable extent may ensue, with 

 swelling of the muscle, and the vein will become hard, and 

 feel like a cord, and increasing upwards, the contiguous parts 

 will feel very hot. This is generally followed by a series of 

 small abscesses over the seat of the wound. The cordiness 

 of the wound gradually increases still further upwards ; and 

 from the inflammation also following that direction, it fre- 

 quently proves fatal to the horse. 



Eemedies. — Some veterinary surgeons, to stimulate the 

 part, apply a hot iron to the margin of the orifice, which 

 induces a union of its edges. Should this not prove 

 effectual, and if the swelling is great and the abscesses have 

 made their appearance, the next remedies are to inject a 

 weak solution of nitrate of silver or other caustic liquid 

 into the abscesses, or to introduce setons into them ; and 

 should this fail, he should cut out the diseased portion of 

 the vein. 



This operation will not be attended with any bad conse- 

 quences ; for all the blood-vessels, whether veins or arteries, 

 communicate with each other either directly or indirectly, 

 in so many difierent ways, that an injury sustained by a 

 portion of them is compensated for by the current of the blood 



