t>HYSICAL AND LITERARY. 24^ 



Ijow often do we meet with cafes of ge-» 

 neral lax habits, of palfies, of a general 

 foftning of the bones of the body, where 

 we can difcover no fault, either in the blood 

 or in the flruclure of the parts I The particles 

 of our fluids are too fubtile, and the ien- 

 fible qualities of our blood, even when 

 affeded with difeafes of very oppofue 

 natures, are fo near to each other, and 

 the vefTels arid fibres affeded are fo fine 

 as not to be capable of coming under the 

 obfervation of our fenfes, which can on- 

 ly judge of objeds many thoufand times 

 more grofs than thefe* 



The cafes of the two unfortunate pa- 

 tients I related above, are amongft thofe 

 for which no caules can be alTigned. 

 John Parker certainly laboured under no 

 venereal taint ; otherwife, in the fpace of 

 twenty years, it would have Ihewed it- 

 felf fome way or other. He had commit- 

 ted no exceffes, or received any particular 

 injury in the parts where the aneurifms 

 appeared. He was in a good ftate of health 

 ^vhen the rupture came down ; he under' 

 went a dangerous operation, was blood- 

 ed 



