The Digital Ark: Early Modern Collections of Curiosities in England and Scotland, 1580-1700
Deny ( - )
References in Documents:Copperas.
'Tis white, and form'd almost like Sal
Ammoniac; but
hath the perfect Tast of Green Vitriol. Acids stir it not.
Besides the places mention'd, and others, Green Copperaas
is plentifully made here in
where. The Copperas Stones or Fire-Stones are found on
the Sea-shore in
best of a bright Silver-colour. For the making
of Copperas,
fifteen broad at top; well
ram'd first with Clay, and then
with
Chalk. In these Beds the said Stones are
laid about two
feet thick: which by Sun
and Rain, are gradually dissolv'd;
and
in five or six years time, begin to turn into a kind of
Vitriolick Earth, which will swell and
ferment like levened-
Dough. And once in four years, the Bed is
renewed with
fresh Stones. In a Boyler containing about twelve
Tuns of
Vitriolick Liquor running from the Bed, they
put in by
degrees, about fifteen hundred pounds of old Iron;
which
both quickens the boyling, and prevents the setling and
melting of the Copperas at the bottom
of the Boyler, and
of the Boyler it self. Sometimes, in
stirring the Earth on
the Beds, they find pieces of Native Copperas. See a parti
cular and exact account of these Works at
municated by Mr.
and by Me published in
the a)a)
Of the Nature of Vitriol, see several
considerable Observa
tions grounded on Experiment, in
the same Transactions. (b)
b)
&
Amongst other particulars, an excellent way of purifying
it from its Okre.
The three principal Parts hereof are, an Acid
Spirit, fixed
Salt, and Sulphur. The
last, a good Hypnotick, in some Cases,
where Opium is not safe.
Native Vitriol, saith c) c)
Mus. Met
tity of ʒj in any convenient vehicle, is a great Remedy in
Plague. Blew Vitriol
of ex
cellent use against Venereal
Ulcers. Both of this, and the
Green, is made the
Powder called Sympathetick; the De
scription whereof may be seen in
in Stiptick Liquors of
Mr. Vitriol.