OF BODIES. XXXII. 341 



and likevyife confidering the nature of* the optick /pints , which 

 preconceived to be the moft refined of al that are in mans body, 



Now,that light is mingled with fuch little atomes ifluing out 

 of the bodies from which it is reflected ; appearcth evidently 

 enough, out of what we have Saved , of the nature and operatr- 

 ons of fire and light : and it feemeth to be confirmed , by what 

 I have often obferved in fbme chambers where peop'e feldomc 

 come : which having their windows to the fbuth , Co a* the iunne 

 lyeth upon them a great part of the day in his greareft ftrengtbj 

 and their curtaines being continually drawne over them, the 

 gJaffe becomes dyed very deepe of the fame colour the curtaine 

 is of: which can proceed from no other caule, but that the beams 

 which moot through the glafle, being reflected back from the 

 curtaine,doe take Ibmething alon^ with them from the fupcrfi- 

 cies ofitj which being ofamore foiide corpulence then they, i* 

 left behind (as it were in the {trainer ) when they come ro preffo 

 themfelves through paflages and pores, too little fork to ac- 

 company them in.: and Co thole atomes of colour, doe flicke up* 

 on the glafTe, which they cannot penetrate. 



Another confirmation of it is, that in certaine portions, the 

 funne reflecting from flrong colours, will cart thac.vcty colour 

 upon fome other place ; as I have often experienced in lively 

 fcariet, and cloth of other linart colours : and this 3 not -in that 

 gloating wife, as it maketh colours ofpure light, but like a trus 

 reall dye; and Co, as the colour will appeare the lame to a man y 

 whejefbever he (taodedi. 



Having thus mewed in all our fenfes, theconveniency and a- ~ 

 greeablenefTe of our opinion with nature; (which hath been de- Reafons a- 

 duced,put of the nature of the .objects, the-nature of our /piritsj gainft Mon. 

 tfic.nature and fituation of our nerves, and Ja(i!y from the pro- fi Ur d . 

 perty ofour braine : ) our next con/ideration fhall be , of : the Ca . rt . cs hj * ' 

 dilHculfy that, occurreth inMr..des Cartes his opinion. Firft we ?ln 

 know not how to reconcile the repugnancy s appearing in- his po- 

 fition of themodon of the ether ;. eipecially in iight,fbr that E- 

 thereal fubftance,being extreme rare,mull perforce be eitherex- 

 treme liquid,or extreme brittle; if the fir/t^it cannot choofe but 

 bow andoeprefTed into fbulds^and bodies of unequal! motions, 

 fwimming every where in itjand fo it is impoflible that it fliouki 

 briijg unio the yc auy conUant apparition of the fjr/t mover, 



But 



