2^4 ESSAYS AND OBSERVATIONS 



to proceed immediately to the amputa- 

 tion of the extremity, as is direded by 

 inany, provided there be no carious bone, 

 or other diforder that requires it ; for 

 we find, by repeated operations that have 

 been performed for falfe aneurifms in the 

 arm, that, although the trunk of the hu- 

 meral artery be tied, yet the lateral 

 branches are capable for the moft part of 

 being fo much dilated, as to carry on the 

 circulation, and nourifh the arm. The 

 fame thing may happen in the lower ex:- 

 tremities, when the crural artery is tied; 

 And, therefore, where aneufifms are fitu- 

 ated any where below the middle of the 

 arm or thigh, the furgeon ought only to 

 tie the artery above and below the aneu- 

 rifmal fac, to open the Cyft, and evacuate 

 its contents, and to treat it otherwife like 

 an incyfted tumour, and wait to fee 

 what nature will do ; having, as Mr Sharp 

 advifes, a tournequet, and proper inftru- 

 tnents, anddreffings, for amputations rea- 

 dy, in cafe it fhould prove requifite to 

 proceed fo far. 



All 



