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The Artist's Assistant, In the Study and Practice of Mechanical Sciences: Calculated for the Improvement of Genius. Illustrated with Copper-Plates — Birmingham, [ca. 1785]

DOI Seite / Zitierlink:
https://doi.org/10.11588/diglit.19571#0263
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THE ARTIST'S ASSISTANT. 249

and, I fnall, therefore, only point out thofe circum-
stances in the manner of their ufe, which are pecu-
liar to the application of them to this purpofe.

Of the gilding on paper proper to be ufed along
with painting in water colours, or frefco—The gild-
ing proper to be ufed with water colours, may be
either with the leaf gold, or powder ; which I a ft,
W'hen mixed with the proper vehicle, is called fhell
gold.

The leaf gold is neceffary in all cafes, where a
metalline and fhining appearance is wanted ; and it
may be laid on the defigned ground, by means either
of gum-water, or ifinglafs fize : the gum-water, or
fize. fhould be of the weaker kind, and not laid too
freely on the ground, and proper time fhould like-
wife be given for it to cry : the judgment on which
muftbe formed in this cafe, as in the other kinds of
gilding, by touching with the finger. The manage-
ment of the gold alfo is much the fame in this, as in
the former ; and where a polifh appearance is want-
ing, the dog's tooth, or other kind of burnifher may
be ufed. In the gilding larger furfaces, it will be
found advantageous to colour the ground with the
gall (lone, and where colours are to be laid on the
gilding, the brufhing the gold over with the gall of
any beaft, will make it take them in a much more
kindly manner.

When the gold powders are ufed along with paint-
ings in water colours, it is previoufly formed into
fhell gold, (as it is called, from its being ufually put
into mufcle fhells, in the fame manner as the colours.)
This fhell gold is prepared by tempering the gold
powder with very weak gum-water, to which a little
foap-fuds may be put, to make the gold work more
eafily and freely,

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