Opticks : or, A treatise of the reflections, refractions, inflections and colours of light . THE. THE SECOND BOOK O F OPTICKS. PART III. Of the permanejit Colours of natural Bo-dies^ and the Analogy between them andthe Colours of thiii tranfparent Plates* AM now come to another part ofthis Defign, which is to confider howthe PhiEnomena of thin tranfparentPlates fland related to thofe of all o-ther natural Bodies. Of thefe Bodies I have al-ready told you that they appear of divers Co-lours,

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Keywords: ., bookauthornewtonisaacsir16421727, bookdecade1, booksubjectoptics