Physical AND LitEiiARY. i^$ 



the returning veins, we may conclude, 

 that there was no fuch obftrudlion in the 

 arteries below, as was capable of giving 

 rife to the aneurifms. Nor can we, with 

 certainty, affign any caufe for the aneu- 

 rifm which appeared in the armpit of 

 Thomas Cook ; for it may be doubted 

 whether an obftrudion of the axillary 

 artery gave rife to the aneurifm, or whe- 

 ther the prefTure of the aneurifmal fac 

 on the artery was not rather the caufe of 

 the concretion of its fides. 



We have no pathognomonic fymptom 

 by which we can know the true aneu- 

 rifms when feated deep in any of the 

 great cavities of the body, till fuch time 

 as they become fa large as to be felt by 

 external prelTure, or to protrude out- 

 wards J for the fymptoms attending them 

 diffei* according to their ficuation, and 

 are fo fimilar to thofe produced by o- 

 ther difeafes, as to make it impoffible for 

 us to diftinguilh them in the beginning. 

 Perhaps a train of circumftances and 

 fymptoms, joined to the patient's com- 

 plaining 



