c85 ESSAYS and OBSERVATIONS 



aorta has been found dilated at its curva- 

 ture, in fome to an immenfe fize capable 

 of holding one, two, or more pints, with 

 its coats in fome firm, hard, cartilaginous, 

 or even bony, not much thicker than 

 natural ; in others, thicker at one part, 

 and thinner at another; in others, two 

 or three times the natural thicknefs of the 

 aorta. Many of them protruded either 

 forwards towards the fternum, or up- 

 wards on the infide of the clavicles to- 

 ward the neck, in form of a pouch or 

 oblong tumor; others pointed towards 

 the back. Moft of them at laft burft, 

 and the patient died of the haemorrhage. 

 The one mentioned by Maloet, burft in- 

 to the trachea aiteria^ and fuffocated the 

 patient ; and we have the cafe of one 

 which burft into the cavity of the thorax; 

 related by Mangetus "^ ; fome of chem fo 

 difturbed the animal functions, and ftop- 

 ped the circulation, as to -put an end to 

 life before they broke. And, in the cafe 

 related by Mr Le Dran, the patient's life 



feems 



* See his Biblioth. ehirurg. vol. i. 



