Barrow, John [Editor]
Dictionarium Polygraphicum: Or, The Whole Body of Arts Regularly Digested: Illustrated with Fifty-six Copper-Plates. In Two Volumes (Band 2) — London, 1758

Page: 133
DOI Page: Citation link: 
https://digi.ub.uni-heidelberg.de/diglit/barrow1758bd2/0146
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O I L 133

Slat the oallet mav be held in the hand : The ufe of this is to

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hold and temper the colours upon.

The {training frame is made of wood, on which the primed
cloth, that is to be painted upon, is fattened with nails. Thefc
frames ought to be of feverai fizes, according to the fize of the
cloth.

The primed cloth is that which is to be painted upon, and is
to be prepared as follows :

Take good canvas, and firft. fmooth it over with a fleek-ftone ;
fize it over with good fize and a little honey, and let it ftand to
<2ry; then lay it over once with whiting and fize, mixed with a
little honey, and the cloth is prepared : On this you may firft
draw the picture with a coal, and afterwards lay in the colours.
Where, by the way, you may take notice, that the ufe of honey
is to prevent it from cracking, peeling, or breaking out.

Pencils of all fizes, from a pin to the bicknefs of a finger,
which are called by feverai names; as Dutch quill fitched and
pointed, goofe quill fitched and pointed, fwan quill fitched and
pointed, jewelling pencils, and brittle pencils, fome in quills,
ibme in tin cafes, and fome in flicks.

The flay, or rnolftic, is a ftick, generally of brafil wood, in
length about a yard, having a fmall ball of cotton at one end of
it, fixed hard in a piece of leather, about the fize of a chefnut,
which is to be held in the left hand while you are working ; and,
laying the end which hath the leather ball upon the cloth or
frame, you may reft your right arm upon it.

The colours are in number feven, as has been faid elfewhere,
viz. white, black, red, green, yellow, blue, and brown.

Of which, fome may be tempered upon the pallet at firft;
fome muft be ground and then tempered ; and others muft be
burnt, ground, and laftly tempered.

As for the fize for fizing the primed cloth : Boil glue well
in fair water till it be diffolved, and it is made.

To make the whiting for the ground of the cloth. Mix ground
whiting with the fize, and with it white the cloth or board, it
being firft made very fmooth ; and, after dying them, do them
over again a fecond or third time; afterwards fcrape them fmooth,
and lay it over with white lead tempeted with Oil.

To keep the colours from fkinning over. Oil colours, if they
{land but a little time before they are ufed, will have a fkin grow
over them ; which may be prevented by being put into a glafs,
and putting the glafs three or four inches under water, and then
they will never thin nor dry.

To cleanfc the grinding-flone and -pencils. Grind curriers fhav-
jngs upon the grinding-ftone, if it be foul, and afterwards crumbs
cf bread ; and thev will fetch off" all the filth.

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