DOI Seite / Zitierlink:
https://doi.org/10.11588/diglit.19574#0068
54 BLU
it will hold as well as the other, confidering it has not the body
of ultramarine.
This colour does not grind well in water; becaufe there
is fuch an oily quality in it, that it does not mix kindly with
water, and at the beft will change, as it is now prepared in
the common way.
Attempts have been made to make of it a Blue ink ; which
indeed has held the colour tor a month or two, but then turned
to a muddy yellow.
And, when you put your pencil with gum water into a fhell
of this Blue, you will find, where the water fpreads, the Blue
will change yellowifh, til! the body of the Blue is well ftirred up.
And, after all that can be done with this colour in water, it
will only ferve to fhade ultramarine with ; but in oil it will ferve
very well for the prefent to fupply the place of ultramarine.
Blue Bice is a colour of a good brightnefs next to Pruffian
Blue, and alfo a colour of a body, and will flow pretty well in
the pencil ; efpecially if it be well warned, as it is directed to
be done of the whites and minium.
Saunders Blue is alfo of very good ufe, and may ferve as a
fhade to ultramarine, or the Blue bice, where the fhades are
rot required to be very deep ; and is of itfelf a pleafant Blue,
to be laid between the lights and fhades of fuch a flower as is
of a mazarine Blue.
A fine Blue from Mr. Boyle. Take the Blue leaves of rue,
and beat them a little in a ftone mortar, with a wooden peftlej
then put them in water, juice and all, for fourteen days or more,
wafhing them every day till they are rotten ; and at laft beat
them and the water together, till they become a pulp, and let
them dry in the fun.
This will produce as good a Blue as indigo, and be much
fofter ; but, in order to keep it a long time, when you beat it
the la it time, add to it a little powder of gum Arabic ; of
which you may put more or lefs, as you would have it more
free or tenacious in the working. It is a fine Blue for fhading,
has a good body, and runs warm in the pencil.
Indigo Blue. This makes the ftrongeft fhade for Blues of
any other, and is a foft warm colour, when it has been well
ground and warned, with gum water, by means of a ftone and
muller. It is made of what lightnefs you pleafe, by putting
more gum water to it; and, by how much there is lefs, the
darker it will be.—Before you ufe it upon a print, it will be
proper to try it upon a Dutch tile, for it runs warmly in the
pencil, and fo perhaps may otherwife prove too ftrong for your
defign, which is always to be taken care of, when a flowing
colour js to be Jajd over a dark fhade of a print; which fhade
will
it will hold as well as the other, confidering it has not the body
of ultramarine.
This colour does not grind well in water; becaufe there
is fuch an oily quality in it, that it does not mix kindly with
water, and at the beft will change, as it is now prepared in
the common way.
Attempts have been made to make of it a Blue ink ; which
indeed has held the colour tor a month or two, but then turned
to a muddy yellow.
And, when you put your pencil with gum water into a fhell
of this Blue, you will find, where the water fpreads, the Blue
will change yellowifh, til! the body of the Blue is well ftirred up.
And, after all that can be done with this colour in water, it
will only ferve to fhade ultramarine with ; but in oil it will ferve
very well for the prefent to fupply the place of ultramarine.
Blue Bice is a colour of a good brightnefs next to Pruffian
Blue, and alfo a colour of a body, and will flow pretty well in
the pencil ; efpecially if it be well warned, as it is directed to
be done of the whites and minium.
Saunders Blue is alfo of very good ufe, and may ferve as a
fhade to ultramarine, or the Blue bice, where the fhades are
rot required to be very deep ; and is of itfelf a pleafant Blue,
to be laid between the lights and fhades of fuch a flower as is
of a mazarine Blue.
A fine Blue from Mr. Boyle. Take the Blue leaves of rue,
and beat them a little in a ftone mortar, with a wooden peftlej
then put them in water, juice and all, for fourteen days or more,
wafhing them every day till they are rotten ; and at laft beat
them and the water together, till they become a pulp, and let
them dry in the fun.
This will produce as good a Blue as indigo, and be much
fofter ; but, in order to keep it a long time, when you beat it
the la it time, add to it a little powder of gum Arabic ; of
which you may put more or lefs, as you would have it more
free or tenacious in the working. It is a fine Blue for fhading,
has a good body, and runs warm in the pencil.
Indigo Blue. This makes the ftrongeft fhade for Blues of
any other, and is a foft warm colour, when it has been well
ground and warned, with gum water, by means of a ftone and
muller. It is made of what lightnefs you pleafe, by putting
more gum water to it; and, by how much there is lefs, the
darker it will be.—Before you ufe it upon a print, it will be
proper to try it upon a Dutch tile, for it runs warmly in the
pencil, and fo perhaps may otherwife prove too ftrong for your
defign, which is always to be taken care of, when a flowing
colour js to be Jajd over a dark fhade of a print; which fhade
will