Dotttint of faMalitie& 49 



:pY other more than ordinarily Intel- 

 ligent Spagyrifts 5 (hall propofe any 

 particular Hypothefes,differing from 

 thofe that I have queftioned^as their 

 Do&rine and Reafons are not yet 

 known to me 5 fo I pretend not that 

 the paft Arguments (hould conclude 

 againft thousand am willing to thinks 

 that Perfons advantaged with foch 

 peculiar opportunities to dive into 

 the Myfteries ofNature, will be able 

 to give us, if they (hall plcafe 5 afar 

 better account of the Qualities of 

 bodies thafr what is wont to be pro- 

 pofed by the generality of Chy- 

 mifts. 



Thus, dear Fyrophilus^ I have laid 

 before you fome of the chief Imper- 

 fedlions I have obferved in the vul- 

 gar Chymifts Doftrine of Qualities 9 

 and confequently I have given you 

 fome of the chief Reafons that hin- 

 der me from acquiefci?ag in it. And 

 as my objeftions are not taken from 

 the Scholaftical fubtleties nor the 

 doubtful fpeculations of the Peripa- 

 teticks or other Adverfaries of the 



O Her- 



