222 ESSAYS AND OBSERVATION^ 



violent effort, or of his having done any 

 thing to occafion the fwelling. 



As the aneurifm of the thigh was the 

 only one that was to be obferved, and it 

 had already fomewhat the appearance of 

 pointing outwardly, and muft burft, and 

 put an end to life fo on ; it was thought 

 advifable to amputate the limb above the 

 aneurifm. This was done ; but the man 

 died next day. 



Upon differing the aneurifmal tumour 

 of the thigh, it was found to be formed by 

 a dilatation of the coats of the artery ; the 

 cavity was about the fize of a fmall hen's 

 egg, and was filled with a firm coagaluni 

 of blood, fuch as is commonly to be met 

 with in true aneurifms ; it vvas fomewhat 

 of the fliape of that found in the left ham 

 of John Parker; it protruded forwards, 

 and towards the infide of the thigh; and, 

 at one part, the coats of the artery were 

 extremely thin, and ready to burft. The 

 diftance between where the artery open- 

 ed into the aneurifmal fac or dilated 

 part of itfelf, from where it went out of 

 k, or returned to its natural iize, was on- 



