OF BODIES,Chap.XXIX. 317 



many lines mult be all of" pores quite through ; and many o- 

 thers all of parts ; although the moft, will be mixed of both 

 pores and parts. And Co we ice that although the light do paffc 

 quite through in many place* , yet it refledeth from mere, 

 not onely in the fuperficies , but in the very body it felfe of the 

 Diaphanous fub/Uncc. But in an other fubfhnce of great 

 parts, and pores there can be but few whole lines of pores , by 

 which the light may pafTe from the objeci to make it be /eene j 

 and confequently it mutt be opacons ; which is the contrary 

 of Diaphanous thaLadmitteth many rayes of light, to pafle 

 through it from the objecl to the eye , whereby it is feene, 

 though me Diaphanous hard body, do inter vene-betweenc 

 them. 



Now if wee confider the generation of thefe cnro colours 6. 



(white and black ) in bodies ; we fhall find that likevvife to ;u- J*"? for ? cr ' 

 ftifyand iecond our doctrine: for white things are generally j^^n&m- 

 cold and dry ; and therefore , are by nature ordained to be re- c a by the gene- 

 ceptacles, and confer vers of heat, andofmoyftu-re ; as Phyfi- ration of white 

 tiansdo^note. Contrariwife, black, as alib greene, (which is. and black in 

 neere of kinne to blackjare growing colours, andarethedieof 

 heate incorporated in aboundance ofwet.-as we fee in ffnoake^in 

 pitcoale.,in garden ground , and in chymicali putrefactions . all 

 which are buck ; as aifb in yongherbes; which are generally' 

 greene as, long as they are yong and growing. The other co- 

 lours, Beeping their Handing betwixt thde, are generated by the 

 mixture of taem ; and according as they partake me re or lefie 

 of either oft lem a v neerer or further off from it. 



So that after all this diicourle.wemay conclude in fhort ^that 

 the colour of a body , is nothing eife,but the po^ve which that 

 bo i , hatn of refining lig'it unto the eye , in a cert aine order 

 andpoiition : and conlecjuently , is nothing elf e bur the very 

 iuperficies ofit^vit'i its afperity,or imoothneffe ; with irs pores, 

 or inequalities; with its hardnefle, or fbfinefle; and "fucn like. 

 The rules and limits whereof , if they were duly obfer ved and 

 ordered.the whole nature and fcienee of colours would eafily 

 be knowjie and be delcribed. But out of to is little which we > 

 havedelivered of tVs (ubjecl it may be rightly inferred that re- 

 all colours do proceed from rarity and den^ity,(as even-now we 

 touched;andhve their head & fprjng thererand are not ftran.ge 



B b qualities 



