or ^oDuctton of JFt jctnef** 17 



fortis, and other Qualities wherein 

 Gold differs from Mercury, efpe- 

 cially Malleablenefs, which, accor- 

 ding to our Notes about that Quali- 

 ty, ufually requires that the parts, 

 from whofe union it refults, be ei- 

 ther hooked, branched, or other- 

 wife adapted and fitted to make them 

 take faft hold of one another, or 

 ftick clbfe to one another. And fince^ 

 in the whole mafs of the fa&itious 

 Gold, all fave one grain mud be ma- 

 terially the fame body,' which, before 

 the projection was made, was Quick- 

 silver, we may fee how great a pro- 

 portion of volatile matter may, by 

 an inconsiderable quantity of fixing 

 additament^ acquire fuch a new Dif- 

 pofition of its parts, as to become 

 irtoft fixt. And however, this In- 

 ftance will agree much better with 

 the Mechanical Do&rine about Fixi- 

 ty, than with that vulgar Opinion 

 of the Chymifts^ (wherewith 'twill 

 not at all comply,) That if, in a mix- 

 ture, the volatile part do much ex- 

 ceed the fixt, it will carry up that, 



