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-glass. To which is added, the method of painting on glass and enameling. Also how to extract the colours from minerals, metals, herbs and flowers. A work containing many secrets and curiosities never before discovered. 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.