^(>^ ESSAYS and OBSERVATIONS 



neurifms grow large, then the means here 

 propofed can have no efFe(5l in making a 

 cure, and the only method left is to apply 

 a tournequet nearer the heart than where 

 the tumour is, fo as to flop entirely the 

 circulation in the part ; to make an in- . 

 cifion, and lay bare the artery in the 

 middle of the fore part ; to open the cyft,. 

 and evacuate its contents ; to tie the ar* 

 tery above, and likewife below where 

 it is dilated, to prevent bleeding from 

 any anaftomofing branches that may o- 

 pen into the artery further from the 

 heart than where the firft ligature is 

 made. It may not be amifs in making 

 thefe ligatures, where the fituation of the 

 dilated artery will admit of it, to follow 

 the directions given by my father * for 

 performing the operation in the falfe a- 

 peurifms of the arm, viz* to take hold of 

 the artery with the thumb and fore-fin- 

 ger of the left hand, pinching it towards 

 the back part, and drawing it gently out- 

 wards at the fame time, and then to pulli 



the 



• See Edinburgh Medical Effays, vol. 4. art, 17. 



