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Barrow, John [Hrsg.]
Dictionarium Polygraphicum: Or, The Whole Body of Arts Regularly Digested: Illustrated with Fifty-six Copper-Plates. In Two Volumes (Band 1) — London, 1758

DOI Seite / Zitierlink:
https://doi.org/10.11588/diglit.19574#0110
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bath, to haftenthe folution of the materials; becaufe it has been
faid, that it muft be always done in the preparation of thefe
things, which are for tinging the firft fpecies of Chalcedony.

All the nine matrafTes, mentioned in this procefs, muft remain
fifteen days in the fame heat, and be often ftirred daily, that the
water may the better operate on the materials, fubtiliungthem,
and well opening their tinctures.

Then put all thefe materials, with the aqtia-fortis, into a
large ghfs body, by little and little, that they may unite well
together; clofe the body, and fet it on the fame heat, ftirring
it well for fix days.

Afterthis, take a large glafs cucurbit, well luted half-wayup
the body of ir, and fet it on an afh furnace ; put into it all the
materials out of the body ; fit a head and receiver to it, lute
the joints well, and diftil it for twenty-four hours over a gentle
fire, left the colours fhould be fpoiled, that the water may pafs
gently over, and the fpirits remain in the powder, which of green
will become yellow.

Thus putting that powder in the requifite dofe, as has been
taught in the firft fpecies of Chalcedony, into purified metal,
made of broken pieces of cryftal, and not of frit ; and adding
to it in its due time calcined tartar, chimney foot, crocus martis
made with vinegar, as has been directed ; and thefe materials
will give an opacity to glafs, which in twenty-four hours time
may be wrought, managing it well with proper tools and often
beating it; and you will have things of an extraordinary beauty,
greater than can be imagined.

CHARGE, 1 [in painting] is an exaggerated re-

OVER-CHARGE, 3 prefentation of any perfon, wherein
the likenefs is preferved, but withal ridiculed.

Few painters have the genius to fucceed in thefe Charges; the
method is to pick out and heighten fomething already amifs in
the face, whether by way of defecl: or redundancy ; thus, v. g.
if nature has given a man a nofe a little larger than ordinary,
the painter falls in with her, and makes the nofe extravagantly
long ; or, if the nofe be naturally too fhort, in the painting he
makes it a mere ftump, and the like of the other parts.

CHARITY, is reprefented in painting, &c. by a woman
|]1 in red, a flame on the crown of her head, with an infant
iuckling on her left arm, and two others ftanding up, one of
which is embraced with the right.

The red colour denotes Charity ; the flame fignifies that Cha-
rity is never idle, but always active ; the three children fhew
the triple power of Charity, for Faith and Hope, without her,
fignify nothing.

CHASTISEMENT, is reprefented in painting, kc. by a

fevere
 
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