DOI Seite / Zitierlink:
https://doi.org/10.11588/diglit.19575#0108
SG ME Z
Or daub the Metal with dog's greafe, and'melt it with it; fa?
that will take away much of the brittlenefs of it, and make it
lb that it may be hammered and wrought.
To colour Metal like gold.—Take fal armoniac, white vitriol,
rock fait, and verdigreafe, of each a like quantity in fine pow-
der ; lay it upon the Metal; then put it into the fire for an hour,
take it out, and quench it in urine, and the Metal will have the
colour of gold.
To melt Metals quickly. Put in a layer or courfe of the pow-
der of any Metal into a crucible ; then lay upon it a layer of
fulphur, falt-petre, and faw-duft, of each a like quantity, mixed
together ; put a coal of fire to it, and the Metal will immedi-
ately be in a mafs.
G J°feph Maria METELLI, of Bologna, a famous and
r /^A^ fantaftical engraver of all kinds of fubjeifs, ufed this
w _ mark.
MEZZO-TINTO, a particular kind of graving, done in
the following manner:
1. Take a well-polifhed copper-plate, and make it all over
rough one way, with a fort of engine particularly defigned for
this purpofe : Then crofs it over with the engine again ; and,
if you feeoccafion, crofs it over it the third time, till it be made
rough alike, viz. fo as, if it were to be printed, it would print
black all over.
2. The fnape or form of this engine, or inftrument, is vari-
ous, according to the fancy of the artift ; thofe that defire them,
may have them of feveral perfons in London, who profefs and
pracfUe the arts of drawing, engraving, and etching.
3. When you have thus roughed the plate, take charcoal,
black chalk, or black lead, to rub over the plate, and draw the
defign with white chalk upon the fame; then take a fharp ftift,
and trace out the outlines of the defign, which you have drawn
with white chalk.
4. Where you would have the light ftrike the itrongeft, take
a burnifher, and burnifh that part of the plate as clean and
fmooth, as it wras when it was firft polifhed.
5. Where you would have the light fainter, there you muff,
polifh it fomuch, and after this manner you mufl either increafe
the light in your defign, making; it either fainter or ftronger, as
the necefhty of the work requires.
Mezzo-tinto prints are, for back-painting upon glafe, to
he preferred to thofe that are engraven; becaufe that the for-
mer, if done with a neat and careful hand, and on a good and
fine-grounded print, can fcarcely be diftinguifhed from limning;
whereas, in thofe that are engraven, ai! the ftrokes of the graver
are plainly vifible.
2. In
Or daub the Metal with dog's greafe, and'melt it with it; fa?
that will take away much of the brittlenefs of it, and make it
lb that it may be hammered and wrought.
To colour Metal like gold.—Take fal armoniac, white vitriol,
rock fait, and verdigreafe, of each a like quantity in fine pow-
der ; lay it upon the Metal; then put it into the fire for an hour,
take it out, and quench it in urine, and the Metal will have the
colour of gold.
To melt Metals quickly. Put in a layer or courfe of the pow-
der of any Metal into a crucible ; then lay upon it a layer of
fulphur, falt-petre, and faw-duft, of each a like quantity, mixed
together ; put a coal of fire to it, and the Metal will immedi-
ately be in a mafs.
G J°feph Maria METELLI, of Bologna, a famous and
r /^A^ fantaftical engraver of all kinds of fubjeifs, ufed this
w _ mark.
MEZZO-TINTO, a particular kind of graving, done in
the following manner:
1. Take a well-polifhed copper-plate, and make it all over
rough one way, with a fort of engine particularly defigned for
this purpofe : Then crofs it over with the engine again ; and,
if you feeoccafion, crofs it over it the third time, till it be made
rough alike, viz. fo as, if it were to be printed, it would print
black all over.
2. The fnape or form of this engine, or inftrument, is vari-
ous, according to the fancy of the artift ; thofe that defire them,
may have them of feveral perfons in London, who profefs and
pracfUe the arts of drawing, engraving, and etching.
3. When you have thus roughed the plate, take charcoal,
black chalk, or black lead, to rub over the plate, and draw the
defign with white chalk upon the fame; then take a fharp ftift,
and trace out the outlines of the defign, which you have drawn
with white chalk.
4. Where you would have the light ftrike the itrongeft, take
a burnifher, and burnifh that part of the plate as clean and
fmooth, as it wras when it was firft polifhed.
5. Where you would have the light fainter, there you muff,
polifh it fomuch, and after this manner you mufl either increafe
the light in your defign, making; it either fainter or ftronger, as
the necefhty of the work requires.
Mezzo-tinto prints are, for back-painting upon glafe, to
he preferred to thofe that are engraven; becaufe that the for-
mer, if done with a neat and careful hand, and on a good and
fine-grounded print, can fcarcely be diftinguifhed from limning;
whereas, in thofe that are engraven, ai! the ftrokes of the graver
are plainly vifible.
2. In