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. CLXXXVI. To prepare the Colours for Painting on Enamel.

NOTHING can be more splendid than the Paint on Enamel, and for this use must be chosen the liveliest and most Noble Colours, and such as will ea∣sily vitrifie and melt.

All these assigned throughout the Sixth Book, are as equally sufficient for this, as for Enameling; if you grind them first on your Marble with the best Oyl of Spike, or mix'em together with the other Ingredients for that purpose, as we shall give a fuller account in the next Chapter, and of all the Matters to be used with calcined Enamels, which serve to make up the Paint for Enamel mixing them well together as Pain∣ters do on their Pallets: When you want some Co∣lours of Enamel, you may with Blue and Yellow make a good fair Green; a Blue and Red mixt, will produce a fine Violet; a Red and White creates a Rose-colour; a Black and White forms a gallant Gray, and so of others.

Every Workman has his own Secret, and peculiar way of Working, but most of them make use of Rocaille for varnishing their Colours, which has an ill effect, because of too much Lead, which is not per∣fectly purged off; this lessens the Life and Splendour, and it always continues as it were tarnished, cloudy, and dull.

But our Enamel being well refined, will produce Work so fine and agreeable, that 'tis not possible to

find any thing so illustrious and accomplisht; and such as for their one private diversion, would work herein, and have not the conveniency of a Glass-house, may easily be furnished, by proceeding to make one according to the directions already given.

Notwithstanding the sufficiency of our Enamel for affording all sorts of Colours and Tinges in painting on Enamel, we will yet prescribe other means for this, no way inferiour thereto, to answer the Advan∣tage and Curiosity of those who Work at this Excel∣lent Art.