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ternal Air, both the inward part of the
Cork, and the Liquor it self, do present­
ly send upwards, and scatter abroad a
fume as thick and white, as if there were
a quantity of Alablaster-dust thrown up
into the Air: And this smoking of the
Liquor lasts till my unwillingness to waste
it, invites me stop it again; and then the
ascension of the fumes suddenly ceases, till
the Viol be again unstop'd.

This fuming Liquor then I thought
would much conduce to the discovery I
desir'd to make, since it sav'd me the need
of conveying any hot Body with it into
the Receiver, and would not darken it
with fumes before the time. Wherefore
having ty'd to the Viol a great weight of
Lead, to keep it from being lifted up by
the drawing out of the Cork; and having
ty'd to the stopple one end of a string, of
which the other end was made fast to the
Cover of the Pneumatical Glass, the Li­
quor was carefully clos'd up after the
wonted manner; then the Air being dili­
gently pump'd out, the Viol was unstopt
in the empty'd Receiver: and though
immediately, npon the drawing out of the
Cork, there appear'd to be as it were
thrown up some white fumes, which