DOI Seite / Zitierlink:
https://doi.org/10.11588/diglit.19571#0183
THE ARTIST'S ASSISTANT. 169
which fpirit of wine mud be (trained from off the
dregs, before the feed-lac be added to it, to form the
varnifh.
The feed-lac varnifh is not equally injurious here,
and with greens, as in the cafe of other colours ; be-
caufe, being only tinged with a re-ddifh yellow, it is lit-
tle more than an addition to the force of the colours.
Yellow grounds may be likewife formed of the
Dutch pink only ; which, when good, will not be
wanting in brightnefs, though extremely cheap.
Of green japan grounds.—Green grounds may be
produced by mixing king's yellow and bright Pruffian
blue ; or rather, turpeth mineral and Pruffian blue.
A cheap, but fouler kind, may be had from verdi-
grife, with a little of the abovementioned yellows, or
Dutch pink. But where a very bright green is
wanted, the chryftals of verdigrife (called diftilled
verdigrife) fhould be employed ; and, to heighten
the effect, they mould be laid on a ground of leaf
gold, which renders the colour extremely brilliant
and pleafmg.
They may any of them be ufed fuccefsfully with
good feed-lac varnifh, for the reafon before given ;
but will be ftill brighter with the white varnifh.
Of orange-coloured japan grounds.—Orange-co-
loured japan grounds maybe formed, by mixing ver-
million, or red lead, with king's yellow, or Dutch,
pink ; or red orpiment, will make a brighter orange
ground than can be produced by any mixture.
Of purple japan grounds.—Purple japan grounds
may be produced by the mixture of lake, and Pruffian
blue; or a fouler kind, by vermillion and Pruffian,
blue. They may be treated as the refh with refpect
to the varnifh,
which fpirit of wine mud be (trained from off the
dregs, before the feed-lac be added to it, to form the
varnifh.
The feed-lac varnifh is not equally injurious here,
and with greens, as in the cafe of other colours ; be-
caufe, being only tinged with a re-ddifh yellow, it is lit-
tle more than an addition to the force of the colours.
Yellow grounds may be likewife formed of the
Dutch pink only ; which, when good, will not be
wanting in brightnefs, though extremely cheap.
Of green japan grounds.—Green grounds may be
produced by mixing king's yellow and bright Pruffian
blue ; or rather, turpeth mineral and Pruffian blue.
A cheap, but fouler kind, may be had from verdi-
grife, with a little of the abovementioned yellows, or
Dutch pink. But where a very bright green is
wanted, the chryftals of verdigrife (called diftilled
verdigrife) fhould be employed ; and, to heighten
the effect, they mould be laid on a ground of leaf
gold, which renders the colour extremely brilliant
and pleafmg.
They may any of them be ufed fuccefsfully with
good feed-lac varnifh, for the reafon before given ;
but will be ftill brighter with the white varnifh.
Of orange-coloured japan grounds.—Orange-co-
loured japan grounds maybe formed, by mixing ver-
million, or red lead, with king's yellow, or Dutch,
pink ; or red orpiment, will make a brighter orange
ground than can be produced by any mixture.
Of purple japan grounds.—Purple japan grounds
may be produced by the mixture of lake, and Pruffian
blue; or a fouler kind, by vermillion and Pruffian,
blue. They may be treated as the refh with refpect
to the varnifh,