DOI Page / Citation link:
https://doi.org/10.11588/diglit.19574#0078
64 BOO
BOLLlTO, a najne by which the Italians call a fea-gfeert
colour in artificial cryftal.
This colour is not to be made without a great deal of pre-*
caution.
To fucceed well, you muft have in the furnace a pot filled
with forty pounds of good cryftal frit, carefully fkimmed, boiledi
and purified^ without any manganefe.
Then you muff have twelve ounces df the powder of fmall
leaves of copper, thrice calcined, as directed in the article COP-
PER. And half an ounce of zaffer, in powder, prepared as
directed in the article ZAFFER.
Mix thefe powders together, and put them, at four times, in-
to the pot, that they may the better mix with the glafs, ftirring
them well each time of putting in the powder, for fear it mould
fwcll too much and run oyer.
After the whole has been incorporated, well mixed, and
pretty well fettled for two hours, try if the colour is deep
enough; if fo, let it reftV; though the lea-green, or iky colour,
ieems at firft greenifh, you need not be concerned at it; for
the fait in the glafs will confume all that greennefs, and change
it into blue.
After the metal has flood at reft for twenty-four hours, it
mav be wrought, and you will have the colour deeper or
lighter, according to the quantity of powder you have put into it.
There is no other rule for that but the fancy of the work-;-
man, for which rcafon it cannot be afcertained ; befides, the
matter that is ufed for tinging of glafs, makes it have fome
more colour, fome lefs, which proceeds from the preparation
of it.
Schehlea BOLSUVERT, ufed this mark, when
he had not a mind to fubferibe his name.
To dye BONES, or born, green. Put of filings of copper and
vcrdigreafe, of each three ounces, into a quart of white-wine
vinegar ; add a handful of bruifed rue, mix them well, and
put the Bones in this for fifteen days.
To dye Bones, &c. red. Firff, let them be boiled in alum
water, then put them into a tincture of brafil in alum water,
for two or three weeks, or elfe into a tincture of brafil with
milk.
To dye Bones, &c. blue. Firft boil them in alum water,
then put them into a diflblution of indigo in urine.
To dye Bones, &c. green, like emeralds. Put as much filings
of copper into aqua-fortis as it will diffolve ; then put in bones,
horns, wood, and let them lie for one night.
Daniel BOON, was a Dutch droll painter, and a great
admirer
BOLLlTO, a najne by which the Italians call a fea-gfeert
colour in artificial cryftal.
This colour is not to be made without a great deal of pre-*
caution.
To fucceed well, you muft have in the furnace a pot filled
with forty pounds of good cryftal frit, carefully fkimmed, boiledi
and purified^ without any manganefe.
Then you muff have twelve ounces df the powder of fmall
leaves of copper, thrice calcined, as directed in the article COP-
PER. And half an ounce of zaffer, in powder, prepared as
directed in the article ZAFFER.
Mix thefe powders together, and put them, at four times, in-
to the pot, that they may the better mix with the glafs, ftirring
them well each time of putting in the powder, for fear it mould
fwcll too much and run oyer.
After the whole has been incorporated, well mixed, and
pretty well fettled for two hours, try if the colour is deep
enough; if fo, let it reftV; though the lea-green, or iky colour,
ieems at firft greenifh, you need not be concerned at it; for
the fait in the glafs will confume all that greennefs, and change
it into blue.
After the metal has flood at reft for twenty-four hours, it
mav be wrought, and you will have the colour deeper or
lighter, according to the quantity of powder you have put into it.
There is no other rule for that but the fancy of the work-;-
man, for which rcafon it cannot be afcertained ; befides, the
matter that is ufed for tinging of glafs, makes it have fome
more colour, fome lefs, which proceeds from the preparation
of it.
Schehlea BOLSUVERT, ufed this mark, when
he had not a mind to fubferibe his name.
To dye BONES, or born, green. Put of filings of copper and
vcrdigreafe, of each three ounces, into a quart of white-wine
vinegar ; add a handful of bruifed rue, mix them well, and
put the Bones in this for fifteen days.
To dye Bones, &c. red. Firff, let them be boiled in alum
water, then put them into a tincture of brafil in alum water,
for two or three weeks, or elfe into a tincture of brafil with
milk.
To dye Bones, &c. blue. Firft boil them in alum water,
then put them into a diflblution of indigo in urine.
To dye Bones, &c. green, like emeralds. Put as much filings
of copper into aqua-fortis as it will diffolve ; then put in bones,
horns, wood, and let them lie for one night.
Daniel BOON, was a Dutch droll painter, and a great
admirer