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VINEGAR.
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or a pier of brick work, a foot or eighteen
inches high.
A tub constructed like the
above is called a
graduation ve.ssel,-vinegar
generator.
(E.s.sig-bilder.)
It is worked in
the following way:-
"The vinegar-room must be, in the first place,
heated to from
100°
to
110°
Fahr., or till the
thermometer in the graduation vessel indicates
at least
77°.
The heat may then be inodified.
vVe now pour through the uppermost cover of
the tub a mixture, warmed to
144°
Fahr., of
8
parts of proof-spirits,
25
parts of soft water,
15
parts of good vinegar, and as much clear
wine or beer.
The water should be first
heated, and then the vinegar, spirits, and
wine or beer may be added to it.
Of
this
inixture, so much should be poured in as is
necessary to cover over the second
lid
two or
three inches deep, with the liquor; after which
the rest may be poured slowly in as it is
wanted.
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