Archimedes Texts

217
Phænomenon to what I have seen happen
in the dissolution of Seed-Pearl in some
acid Menstruum, in which, if a good quan
tity of the little Pearls be cast whole, they
will at first, if the Menstruum be sharp e
nough, be carryed in swarms from the
bottom to the top of the Liquor. We
will adde, that without sealing up the
Glass, this Experiment may be try'd in
one of our smallest Receivers, for there
the exsuction of the ambient Air may be
perform'd so nimbly, that immediately
the bubbles lurking in the Water are al
low'd to display themselves, and ascend
in throngs; insomuch, as having in such
a Receiver try'd the Experiment with
Wine (as a more spirituous Liquor) in
stead of Water, the Red-Wine appear'd
all cover'd, with a copious, but vanishing
white Froth, almost as if a Vessel full of
bottl'd drink had been unwarily open'd.

IT may not a little conduce to the clear

er explication of divers Points in the
Doctrine of Meteors, and perhaps of
some other Physiological difficulties, to
discover what the Air does to the motion
of those Steams or Exhalations that as-