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at all expert in painting. If your glass pane is bulging as
if taken from the belly of a jar, it will show better. When you apply
your turpentine colors to your glass panes, first place
them on a hot tile &, once they are hot, spread your colors &
leave it a while on the tile, then lay down your tin sheet.


Dye

Some take the root of lapathium acutum
maius, which seems to be monk’s
rhubarb or sorrel, & with the root, which
is yellow in the summer, they dyethread &
similar things.


Aquafortis

Some put onfor four pounds of
substance ofaquafortisfour which are in the
retort four ounces of common water in the
receptacle, which is better than putting it into the
retort. One de-phlegms & calcines alum in order that
the water does not have as much dregs. Several make it without
de-phlegming the alum.


Vinegar

One takes for granted that the mineral salt that looks like
marble & is called Cardona salt in
Catalonia & at the border of Spain, thr
when one heats it red-hot & throws it in the all red or
quite hot into wine, it turns it into very good vinegar.
Some make it with water poured on pomace soured after
being pressed by vintagers, but it does not keep, &
spoils in heat & thunder storms.


Buttons of vermeilles

Because vermeilles do not fear fire, one cuts them
into lozenges flat on one side, then one joins them
together in a star shape in a paste of ground enamel, next one
melts it & one gilds the enamel with gold leaf
which one reheats.


Grottos

To fill some empty place that cannot be laden with some sort of
hanging rocks, one puts a piece of thick parchment close to the
fire, which shrinks & crumples. Then one paints it with
distemper, then in oil. Next one affixes it.

