Take five ounces of new wax, half an ounce of red chalk (that is
to say, red stone chalk for drawing[184]), half an ounce of Roman
vitriol,[185] three pennyweights[186] of _feretto di spagna_,[187]
that is of the weight of a ducat, or one-eighth of an ounce, or it
may be a bit less, half an ounce of verdigris, & three pennyweights
of borax. Mix all these things together and melt them with the wax, &
apply them as above described. After this, when the wax is cleaned
off, you can give it the colouring that follows hereunder.
FOOTNOTES:
[184] _Lapis rosso da disegnare_; _French_, ‘_sanguine_.’
[185] _Vitriouolo romano_: _sulphate of iron_.
[186] _Denari._
[187] _Possibly calcined sulphate of iron; French_, ‘_ferret_.’