C A L 7;

There are no certain figns to direct the miners where to find
this mineral fubftance ; only they expert none in grounds that
have no communication with hills. In the Calamine works
they ufe the fame way and inftruments as they do in the lead
mines. When they have landed a good quantity of it, which
is done by winding it up in buckets from their works, they
next carry it away to places where they wafh clean or ruddle
it, as they term it, which is performed in this manner: A fmall
piece of ground is inclofed with boards or turfs, through which
a clear ftream of water runs ; within this inclofure they (hovel
their Calamine with the reft of the impure and earthly parts,
which laft are wafhed away by the running water, leaving the
lead (fome of which is always found in thefe apertures) Cala-
mine and heavier ftony or fparry parts behind. When they
have thus wafhed it as clean as they can, by turning and ftir-
ring it often in the running ftream, they remove the bigger
parts both of the lead and Calamine, and put the fmaller parts,
that none of the ore mav be loft, into fieves with bottoms made
of ftrong wire; this they dip and fhake up and down in a
great tub of water, by which fhaking of the fieves, the parts of
the lead, being heavieft, fink down to the bottom ; the parts of
the Calamine in the middle, and other parts, rife to the top,
which laft being fkimmed off and thrown away, thev then
take off the Calamine, and after that the lead. The Calamine
is next fpread on a board, in order to pick out with the hand
what trafli there ftill remains among it.

When the Calamine is fufficiently prepared by warning and
picking, they carry it to the oven, which refembles that of a
baker's in form, but is much bigger, and has a hearth on one
fide, which is feparated from the reft by a partition made open
at the top, whereby the flame palies over, and bakes the Cala-
mine. They let it lie in the oven four or five hours, during
which time they turn it feveral times with long iron rakes ;
when it is fufficiently burnt, baked, and dried, they beat it to a
powder with long iron hammers, like mallets, upon a thick-
plank, picking out what ftones they find amongft it; fo that
at laft the Calamine is reduced to duft, to be ufed in diftem-
peratures of the eyes.

Paolo CALIARI Veronefe, born in the year 1532, fcholar of
his uncle Antonio Badile, lived at Venice, excelled in hiftory
and portraits, died in the year 1588, aged fifty-fix years.

CALLIOPE, one of the mufes, the prefident of heroic poe-
try, .is reprefented, in painting, with a coronet of gold upon her
head, and upon her left arm garlands of bays in ftore, Lr the
reward of poets; and in her right hand three books, on which
are written, Homerus, Virgilius, Ovidius.

2 Gfo