* * * * *
THE
Experimental History
OF
COLOURS
Begun.
* * * * *
The Third PART.
* * * * *
Containing
Promiscuous Experiments
About
COLOURS.
* * * * *
EXPERIMENT I.
Because that, according to the Conjectures I have above propos'd, one of
the most General Causes of the Diversity of Colours in Opacous Bodyes, is,
that some reflect the Light mingl'd with more, others with less of Shade
(either as to Quantity, or as to Interruption) I hold it not unfit to
mention in the first place, the Experiments that I thought upon to examine
this Conjecture. And though coming to transcribe them out of some
Physiological _Adversaria_ I had written in loose Papers, I cannot find one
of the chief Records I had of my Tryals of this Nature, yet the Papers that
scap'd miscarrying, will, I presume, suffice to manifest the main thing for
which I now allege them; I find then Among my _Adversaria_, the following
Narrative.
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