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. XXIX. The last way of making Crocus Martis.

THis last way will be of some use to those who shall desire to have the Iron or Steel Granu∣lated, or in little drops, the Metal whereof is dif∣ficult to Melt. Take a bar of one or the other Metal, of the weight of five or six pounds, which heat as hot as you can in a Smith's Forge, so that it may Sparkle when it comes out of the Fire: At the same time another Person must have ready a long stick of Brimstone and large which is the best for this Operation, and the Metal coming out of the Fire in the condition we have shewn, you must thrust them one against another over a great Ear∣then Pan full of warm Water, into which the Metal will drop in little drops, or granuli, melting like Wax, when touch'd by the Sulphur; then you must take those little grains, and Stratifie them in a Crucible with Powder'd Brimstone, and afterwards sett them in a Reverberatory-Fire, where they will be reduc'd to a red Powder, which grind and searce and keep for your use.