30 fl&f t|>e ©ec&amcal &*tgtne 



of fire 5 before it could be driven a-* 

 way y as 5 I confefe, I fomewhat won- 

 dered at. The like f&rhiffixnay be 

 made with Oil of Sulphur per Campa- 

 num. But this is nothing to what 

 Helmont tells us of the operation of 

 his Alkghefiy where he affirms, that 

 that MenjiruuM) which is volatile e- 

 noughj being abftrafred from running 

 Mercury, not onely coagulates it^ but 

 leaves it fixt 5 fo that it will endure 

 the brunt of fires acuated by Bellows^, 

 {pmnem foUtum ignem^) If this be 

 certain, it will not be a [lender proof, 

 that Fixity may be Mechanically pro- 

 duced 5 and however, the Argument 

 will be good in reference to the HeU 

 montian Spagyrifts. For if, as one 

 would expeft^ there do remain 

 fome particles of the Menfiruum witfi 

 thofe of the metal, it will not be de- 

 nied,, that two volatile fubftances 

 may perfectly fix one another. 

 And if^ as Helmont feems to think, 

 the Menftruum be totally abftrafted, 

 this Tuppolition will the more favour 

 our D'o&rine about Fixity 3 fince^ if 



there 



