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Experiments and Considerations Touching Colours (1664) by Robert Boyle
page 40 of 285 (14%)
White Object, he fancies, he seeth a Globe of Light, of about the bigness
the Sun then appeared of to him, to pass before his Eyes: And having
Inquir'd of him, how long he had been troubled with this Indisposition, he
reply'd, that it was already nine or ten years, since the Accident, that
occasioned it, first befel him.

I could here subjoyn, _Pyrophilus_, some memorable Relations that I have
met with in the Account given us by the experienc'd _Epiphanius
Ferdinandus_, of the Symptomes he observ'd to be incident to those that are
bitten with the Tarantula, by which (Relations) I could probably shew, that
without any change in the Object, a change in the Instruments of Vision may
for a great while make some Colours appear Charming, and make others
Provoking, and both to a high degree, though neither of them produc'd any
such Effects before. These things, I say, I could here subjoyn in
confirmation of what I have been saying, to shew, that the Disposition of
the Organ is of great Importance in the Dijudications we make of Colours,
were it not that these strange Stories belonging more properly to another
Discourse, I had rather, (contenting my self to have given you an
Intimation of them here) that you should meet with them fully deliver'd
there.

* * * * *

CHAP. III.

But, _Pyrophilus_, I would not by all that I have hitherto discours'd, be
thought to have forgotten the Distinction (of Colour) that I mentioned to
you about the beginning of the third Section of the former Chapter; and
therefore, after all I have said of Colour, as it is modifi'd Light, and
immediately affects the Sensory, I shall now re-mind you, that I did not
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