128 



very confiderable ; and, like that, when it does, the 

 cure is feldom more than temporary. A mild bliller 

 may be tried, which, if it does not remove it, pref- 

 fure may be made ufe of by a bolfler on each fide 

 of the hock, dire(5ily over the fwelling, faftened on 

 by means of a coarfe worfled Hocking drawn over 

 the hock. 



THRUSH, RUNNING. 



This difeafe confifts of a runnino; of ftinkina mat- 

 ter from the cleft of the frog. In many horfes it 

 proves very obftinate of cure, and this is particularly 

 the cafe in contradted feet ; hence it is reafonable to 

 infer that this is one caufe of thrufii : another ap- 

 pears to be the Handing in hot fermenting litter; and 

 of this kind is that rotten thrufli that often attacks the 

 hind feet, increafing till it eats away the whole 

 frog, making the foot hollow, and at laft degene- 

 rating into canker. Common running thrufli is, 

 however, more frequent in the fore feet, becaufe 

 thofe hoofs are more liable to contraction ; and when 

 the difcharge is fmall, it feldom does much mifchief. 



It often is an outlet to the conftitution, and hence 

 comes on and increafes from high feeding and want 

 of exercife. It has been faid to be brought on from 

 the frog being raifed by calkins, and paring, fo as 

 not to be prefled on when the horfe is at rell ; but 

 which preffurc it always enjoys in a Hate of nature. 



