Experiment VIII
But here I muſt not omit to ſubjoyn, that to ſatisfie our Selves, whether or no the Light of a Candle were not made unſincere, and as it were Ting’d with a Yellow Colour by the Admixtion of the Corpuſcles it aſſumes from its Fuel; we did not content our ſelves with what appears to the Naked Eye, but taking a pretty thick Rod or Cylinder (for thin Peeces would not ſerve the turn) of deep Blew Glaſs, and looking upon the Candles flame at a Convenient diſtance througn it, we perceiv’d as we expected, the Flame to look Green; which as we often note, is the Colour wont to emerge from the Compoſition of Opacous Bodies, which were apart one of them Blew, and the other Yellow. And this perchance may be the main Reaſon of that which ſome obſerve, that a ſheet of very White Paper being look’d upon by Candle light, ’tis not eaſie at firſt to diſcern it from a light Yellow or Lemon Colour; White Bodyes (as we have elſewhere obſerv’d) having more than thoſe that are otherwiſe Colour’d, of a Specular Nature; in regard that though they exhibit not, (unleſs they be Poliſh’d,) the ſhape of the Luminary that ſhines on them, yet they Reflect its Light more Sincere and Untroubl’d, by either Shades or Refractions, than Bodyes of other Colours (as Blew, or Green, or Yellow or the like.)