PURGATION. 297 



infide or outfide of the thighs ; but Mr. Clarke 

 objefts to their being made between the jaw- 

 bones, on account of the conflant motion of 

 the jaws. A horfe will bear the difchnrge of a 

 confiderable number of them at once, which, 

 indeed, in urgent cafes, is abfolutely necefTary, 

 in order to derive any confiderable or fpeedy 

 benefit from the practice. Gibfon gives a very 

 necefTary caution againft rowelling horfes of a 

 dropfical habit, with poor and watery blood, 

 and when the fwellings appear upon their legs, 

 belly and fheath ; in fuch cafe the iffues never 

 come to a good digellion, infiead of which a 

 large flux of ferous humours will enfue, and it 

 may be difficult to prevent a mortification. 

 Schirrus and cancer alfo may be produced, 

 from inferting rowels near glandulous parts, 

 or when the mufcular fleih may have been 

 wounded in the operation, or bruifed by the 

 continual preiTure of the hard leather. Should 

 a rowel have been injudicioufly exhibited in a 

 difeafe, and fail to difcharge, except a little 

 thin bloody ichor, there is danger that inftead 

 of fuppurating properly, it may foon turn gan- 

 grenous; in this cafe Mr. Clarke advifes to 

 take out the leather inllantly, and foment the 

 parts with a ftrong infufion of camomile, and 

 to poultice repeatedly, if the fituation w^ili 

 admit it, alfo to bathe with fpirits of wine and 



turpentine. 



