DOI Page / Citation link:
https://doi.org/10.11588/diglit.18732#0132
Efficiently bitten; and if not, ftop out the part you
have tried with lampblack and varnifli; and when that
is dry, pour on the aqua-fortis again.
When the faint parts of your work are bitten enough,
ftop them out, and proceed to bite the* ftronger parts,
ftopping them out as occafion requires, till the whole
work is fufficiently bitten : Then warm the plate, and
take off the foft wax; after which, heat the plate till
the ground melts, pour on a little oil, and wipe the
whole off with linen rag. When the ground is taken
off, rub the work well with the oil-rubber, and wipe
the plate clean; then proceed to finifh it with the
graver, if -it be a fubjecl: which requires it.
The wax for the border is made by mixing with a
pound of bees-wax, one quarter, or one third of a pound
of Burgundy pitch to foften it. As for any colour
added to it, it is ufelefs.
It is to be obferved, that in biting a plate, much at-
tention is required. If a plate be under-bitten, i. e. if
the parts have not attained their proper colour, there is
ufually no remedy, but following every line with the
graver, in order to blacken it: as on the other hand, if
very much over-bitten, a plate cannot be rendered neat
and delicate, let never fo much time and (kill be wafted
on it. If bitten but little above the colour wanted, a few
ftrokes of the burnifher, will lower it at pleafure.
OF
have tried with lampblack and varnifli; and when that
is dry, pour on the aqua-fortis again.
When the faint parts of your work are bitten enough,
ftop them out, and proceed to bite the* ftronger parts,
ftopping them out as occafion requires, till the whole
work is fufficiently bitten : Then warm the plate, and
take off the foft wax; after which, heat the plate till
the ground melts, pour on a little oil, and wipe the
whole off with linen rag. When the ground is taken
off, rub the work well with the oil-rubber, and wipe
the plate clean; then proceed to finifh it with the
graver, if -it be a fubjecl: which requires it.
The wax for the border is made by mixing with a
pound of bees-wax, one quarter, or one third of a pound
of Burgundy pitch to foften it. As for any colour
added to it, it is ufelefs.
It is to be obferved, that in biting a plate, much at-
tention is required. If a plate be under-bitten, i. e. if
the parts have not attained their proper colour, there is
ufually no remedy, but following every line with the
graver, in order to blacken it: as on the other hand, if
very much over-bitten, a plate cannot be rendered neat
and delicate, let never fo much time and (kill be wafted
on it. If bitten but little above the colour wanted, a few
ftrokes of the burnifher, will lower it at pleafure.
OF