io Eefletftonis upon tfcl^otMto 



cal affe&ions 5 as we have named j 

 theie aggregates will ad upon the or- 

 gans of Sight as white bodies. 



CHAP. III. 



AND this leads me to another 

 Exception againft the Hypothec 

 j£f oftheDuelhfts, which is, that the 

 Fracnersof it feem arbitrarily to have 

 affigned Provinces or Offices to each 

 of their two Principles, as the Chy* 

 mijis do to each of their tria prima^ 

 and the Peripatetic^ to each of their 

 Four Elements. For 'tis not enough 

 to Say, that an ^m/, for inftance, as 

 fuch^ performs thefe things* and an 

 Alkali fo many others, that they di- 

 vide the Operations and phenomena 

 of nature^or at leaft (as fome, more 

 cautious,are content to fay) of mixt 

 bodies between them 5 fince Afferti- 

 ons of fuch great moment ought not 

 to be advanc'd or received without 



fuf- 



