[68] 



horfe was the head continued in the fame pofl- 

 tion. The furgical cure is the taking out one 

 or more teeth from the upper-jaw, and perfo- 

 rating the cavity with a proper inftrument in 

 order to make a depending orifice for the matter 

 to flow through ♦, and to make way for fyring- 

 ing the parts affected with proper injecPcionSj 

 which in this cafe are thrown thro' the cavity 

 into the nofe. 



The fimilarity of thefe two cafes, with the 

 method of cure, and the fuccefs attending the 

 furgical treatment, (which was firft invented 

 by our countrymen Drake and Cooper) un- 

 doubtedly gave the firft hint for trepanning 

 and fyringing thefe cavities in horfes : and it is 

 moft probable, that w^hen the operation is at- 

 tempted in time, before the bones become rot- 

 ten, it will be attended with equal fuccefs ; but 

 after opening the cavities, fhould it by probing 

 be difcovered that the bones are in that ftate, 

 the be£l way then would be to difpatchthe horfe, 

 to prevent unnecefTary trouble and expence. 



The parts fixed on for applying the trepan 

 arc pointed out in the plate, and the manner of 

 fawing out the bone will eafily be underflood by 

 a view of the inilrument, and the explanation 

 annexed. 



The perforations being made, our next bufi- 

 nefs is to prevent their filling up too fait : as it 

 may be neceffary to keep them open for fome 

 weeks, b(jfore a cure can be effedled; for which 



purpofe. 



