40 flDf tfre SecJwm'cal ©ngf ne of 



or as it were in little taggots with 

 pieces of wood , fomewhat longer 

 than themfelves opportunely pla- 

 ced between them. For neither in 

 this new Conftitution would they 

 be fit to cut and ftab as before* And 

 by conceiving the edges of more or 

 fewer of the Blades to be turn'd in- 

 wards and thofe that are not^ to 

 have more or lefs of their points 

 and edges to be fheath'd , or other- 

 wife cover'd by interpos'd bodies^ 

 one may be help'd to imagine, how 

 the genuine effe&s of the Blades 

 may be varioufly leflen'd or diverfi- 

 fi'd. But, whether thefe or any other 

 like changes of Difpofition be fan- 

 cy'd, it may by Mechanical Illuftra- 

 tions become intelligible , how the 

 Corrofive Salts of common Subli- 

 mate may lofe their efficacy, when 

 they are united with a fufficient 

 quantity of Quickfilver in Mercuri- 

 us dulcis : In which new ftate the 

 Salts may indeed in a Ghymical 

 phrafe be faid to be fatiated 5 but 

 this Cbymical phrafe does not ex- 

 plicate 



