| Boyle, Robert New experiments physico-mechanicall, touching the spring of the air and its effects 1660 |
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alter the disposition of their insensible
parts, as to become a white and consistent
Body.
And this happens not as in the
precipitation of Benjamin, and some o
ther Resinous Bodies, which being dis
solv'd in Spirit of Wine, may, by the effu
sion of fair Water, be turn'd into a seem
ingly Milky substance.
For this white
ness belongs not to the whole Liquor, but
to the Corpuscles of the dissolv'd Gum,
which after a while subsiding leave the Li
quor transparent, themselves onely re
maining white: Whereas in our case, 'tis
from the vary'd texture of the whole for
merly transparent fluid Body, and not
from this or that part that this whitenesse
results: For the Body is white thorowout,
and will long continue so; and yet may,
in process of time, without any addition,
be totally reduc'd into a transparent Bo
dy as before.
But besides the Conjecture insisted on
all this while, we grounded another upon
the following Observation, which was,
That having convey'd some smoke into
our Receiver plac'd against a Window, we
observ'd, that upon the exsuction of the
Air, the Corpuscles that were swimming
in it, did manifestly enough make the Re-
search