THOEOUGHPIN. 



329 



Thoroughpin, like bog spavin, is often unaccompanied by in 

 flammatoiy symptoms, and is then of little moment. When, how 



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F^g- 135- — Side view of thoroughpin. 



ever, it is due to sprain of the back tendons, it is a very serious 

 affection. Heavy cart stallions not uncommonly get these 

 enlargements from the strain on their hocks consequent on cover- 



