It does not follow, because after we
have come nearer to this _congeries_, or mass, and divided it into its
parts, and examining each of its parts severally or apart, we find them to
have much the same colour with the whole mats; it does not, I say,
therefore follow, that if we could break those _Globules_ smaller, or any
other ways come to see a smaller or thinner parcel of the ting'd liquor
that fill'd those bubbles, that that ting'd liquor must always appear Red,
or of a Scarlet hue, since if Experiment be made, the quite contrary will
ensue; for it is capable of being _diluted_ into the palest Yellow.
Now, that I might avoid all the Objections of this kind, by exhibiting an
Experiment that might by ocular proof convince those whom other reasons
would not prevail with, I provided me a _Prismatical Glass_, made hollow,
just in the form of a Wedge, such as is represented in the tenth _Figure_
of the sixth _Scheme_. The two _parallelogram_ sides ABCD, ABEF, which met
at a point, were made of the clearest Looking-glass plates well ground and
polish'd that I could get; these were joyn'd with hard cement to the
_triangular_ sides, BCE, ADF, which were of Wood; the _Parallelogram_ base
BCEF, likewise was of Wood joyn'd on to the rest with hard cement, and the
whole _Prismatical_ Box was exactly stopt every where, but onely a little
hole near the base was left, whereby the Vessel could be fill'd with any
liquor, or emptied again at pleasure.
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