of continuing malleable, crack or 

 cleave under the hammers and as 

 when C to difpatch and omit other in- 

 ftances) a fuffidently thin leaf of 

 Gold^held between the Light and the 

 Eye 5 appears green* 



Another thing (of kin to the for- 

 mer,) that I like not in the Doftrine 

 oiAcidum and Alc&li^ is, that though 

 the Patrons of it, whileft they would 

 feem to constitute but two Principles, 

 are fain(asl lately intimated)to make 

 I know not how many differing forts 

 of Acids^befides fome variety of Alca- 

 ldes $ yet their Principles are too fevy 

 and narrow to afford any fatisfa&Ory 

 explication of the Vhmomzna. For 

 I fear/ twill be very difficult for them 

 to give a Rational Account of Gravi- 

 ty.Springinefs^Light^and Emphatical 

 Colour^ Sounds, and fome othef 

 Qualities that are wont to be called 

 manifeftj and much more of feveral 

 that are confeft to be occult^ as Ele- 

 £Uicity p and Magnetjfm 5 in which 

 kit I fee not, how the affirming that 



there 



