exper. x. 



to produce variety of Tafis with one 

 Menfiruum^ by officiating it with 

 injtpid Bodies. 



THis Propofition a Mathemati- 

 cian would go near to call the 

 Converfe of the foregoing ; and as it 

 may fervc as well as that to difcover 

 the ftru&ure of the minute parts of 

 divers metalline and mineral bodies 5 

 fo it may not onely as well, but bet- 

 ter than that, fervc us to illuftrate 

 the Corpufcularian Doftrine of Tafts, 

 by (hewing us, that a fingle^ and r as 

 far as Ghymiftry teaches us^ a fimple 

 body, endowed with a peculiar taft, 

 may 5 by being compounded with 

 others, each of them infipid of it fclf, 

 produce a confiderable number of 

 differing tafts. There may be more 

 Inftruments than one made ufe of in 

 this Trial 5 but of thofe that are 

 known, and we may eafily obtain, 

 the moft proper are Spirit of Nitre, 

 R 3 and 



