>»> 



t^HYSICAL AND LITERARt, 15^1 



^rous to have them, to make an anato- 

 .mical preparation, I proceeded no fur- 

 ther, left I fiiould fpoil them for his 

 |)urpofe. 



When 1 fent them to Edinburgh, I 

 'begged the favour of my father and 

 brother to give me a particular account 

 of what further obfervations they fhould 

 make in examining them, and have fince 

 received the following from my father. 



" Th e aneurifmal facs you fent to E- 

 " dinburgh were dilTeded by your bro- 

 *' ther, in my prefenee ; the appearances 

 ** were the following. The external loofe 

 **■ cellular, and the cellulo-membranous 

 " coats being difTeded away carefully, the 

 " circular fibrous, commonly called muf- 

 "cular, coat, was evidently feen continu- 

 " ed on all the three fmall facs in every 

 " part of them, as in fig. 9. BB. but was 

 *' thicker there than in the found part of the 

 "artery; and, in the moft enlarged part of 

 " the facs, an extraneous fubftance, refem- 

 ** bling a foft fleatomatous matter, was 



•♦ in- 



