( & ) 



wliolfome chyle. Nor has intemperate 

 luxury been confined to this fingSe inno^ 

 vation : Water, the natural drink of 

 mankind, as of all other animals, is now 

 contaminated by the mixture of perni- 

 cious fpirits, which have poifoned one 

 of the principal blefiings of life. From 

 this fource are derived thofe tribes of 

 difeafes which opprefs humanity, and 

 which are lb far factitious, that they can 

 hardly be deemed the proper objects of 

 Natural Hiftory. There are fome dis- 

 orders, however, which are peculiar 

 to Tropical Countries, and which de- 

 pend rather on the variations of climate 

 than the innovations of luxury j but 

 thefe are the peculiar objects of me- 

 dical refearches, and therefore I fliall 

 not defcend to minute particulars on this 

 fubject. 



Among Superficial, or cutaneous dis- 

 orders, the mod troublefome is an incu- 

 rable 



