The art of glass shewing how to make all sorts of glass, crystal and enamel : likewise the making of pearls, precious stones, china and looking-glasses : to which is added, the method of painting on glass and enameling : also how to extract the colours from minerals, metals, herbs and flowers ... : illustrated with proper sculptures / written originally in French, by Mr. H. Blancourt, and now first translated into English ; with an appendix, containing exact instructions for making glass-eyes of all colours.

CHAP. CCV. To prepare a Yellow Paint for Glass.

THIS Colour requires a more costly Preparation than the precedent, because it cannot be well done without a tenth part of prepared Silver, as we shall shew hereafter.

Take fine Silver in Plates from the Copple, stra∣tifie 'em in a Crucible, with Powder of Sulphur, or Nitre, the first and last Lay being of the Powder, and so calcine them in a Furnace; this done, cast it out, as soon as all the Sulphur is consumed, into an Earthen-Bason of Water, and afterwards pound it in your Stone-Mortar until 'tis fit for the Marble, and so grind it with some of its Water wherein it was cooled, for six Hours; then add nine times

its weight of Red-Oaker, and grind them together for a full Hour, and 'tis done and fit for Painting on Glass.