And as for what he
tells us, that in the Dark the Infusion of our Wood will resume a
Caeruleous Colour, I wish he had Inform'd us how he Try'd it.
But this brings into my mind, that having sometimes for Curiosity sake,
brought a round Vial with a long Neck fill'd with the Tincture of _Lignum
Nephriticum_ into the Darken'd Room already often mention'd, and holding it
sometimes in, sometimes near the Sun-beams that enter'd at the hole, and
sometimes partly in them, and partly out of them, the Glass being held in
several postures, and look'd upon from several Neighbouring parts of the
Room, disclos'd a much greater Variety of Colours than in ordinary
inlightn'd Rooms it is wont to do; exhibiting, besides the usual Colours, a
Red in some parts, and a Green in others, besides Intermediate Colours
produc'd by the differing Degrees, and odd mixtures of Light and Shade.
By all this You may see, _Pyrophilus_, the reasonableness of what we
elsewhere had occasion to mention, when we have divers times told you, that
it is usefull to have New Experiments try'd over again, though they were,
at first, made by Knowing and Candid Men, such Reiterations of Experiments
commonly exhibiting some New Phaenomena, detecting some Mistake or hinting
some Truth, in reference to them, that was not formerly taken notice of.
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