i 8 <f Natural Magick. ^ 09 ^ 6 .

Chap. IX.

T0 make Smalt of 4 clear rose-colonr.

T He most skilful gl*ss-m*kers do labour Very muck, in colouring Smalt of»rose-colour ; which is commonly called Rossiclere : seeing that in former times theydid it most beautifully and artificially. I will set down what both I my self have donein it, and what I have received from other friends: I have performed the best I could,to shew others an opportune way of making better. The manner is this: cast tenpounds of Crystal in a pot, and when you know it to be well melted, adde a pound ofthe best red lead,by half at a time,stirring it with an iron rod as fast as you can; for theweight of it will make it sink to the bottom: when it is well mixed, take it cut of thepot with iron instruments fit for the purpose,and cast it into watendo this th ricetthenmix with it five ounces of Tin calcined,and Cinnabaris of a most bright colour; and festirring them about for three hours, let them stand a while. When this is done, addemoreover three ounces of vitrified Tin, and beat them together without any inter-mission, and you will fee a most lively rose-colour in the glass, which you may use inenamelling Gold.

To make Glass of Tin.

Set a pound of Tinne in a strong earthen pot,into the fire: let it heat and melt; thenremove it with iron tongs into the hottest flames of the glafs-makers foraace, forthree or four days. Afterwards, the pot being taken out, and cold ; break it, andin the top you will find glass of a saffron colour, not clear: but the longer it stand*eth in the fire, the persecter it will grow ; neither have I known better in this kind,of those many that I have try ed. It must be reduced into fine powder: for thewhich not onely a morter and mills will be requisite, but also a Porphytian stone. Ifit be too florid, you may make it of a more faint colour,by adding glass to it.

Another way to make it.

This is onely for friends: Take nine parts of burnt Time, seven of Lead , two ofCinnabaris; of Spanish-soder and Tartar,one part and a half • of the Blood-stone onepart, of Painters red a fourth part. And do with it, as in the former.

Chap. X.

Of leaves of Metal to he fttt under Gems.

T Here are certain leaves of Metal laid under Gems, which being perspicuous, arethereby made paler or deeper, as you will: for if you would have them of a fain-ter colour, you must put under them leaves of a more clear brightness: if of a deeper,leaves of a darker hue. Moreover, Gems being transparent, are seen quite through,and discover the bottom of the ting, which taketh much of their beauty off. This isan invention of later times, who by terminating the transparency of stones, withleaves of a most bright and pleasant colour, do fie and makeup, and mend the co-lour of the stones. I have been very much delighted ia this kind of work y andtherefore will deliver it particularly. The leaves are to be made either of Copperalone, or of Copper, Gold, and Silver, mixt together. I will speak of those whichare made of Copper alone: Yon must boy at the Brasiers-shops some thin plates ofCopper, of the thickness of strong paper, that they may be the easier made thinner,which you must cut into pieces of three fingers in length, and two in breadth; sothat a sheet of two pound , will be divided into a hundred and thirty parts: thesewe most divide again into two parts, that they may be hammered more easily: Takefourty and beat them, asArcificers do gold, when they beat it ont into thinne rays.Let theanvile and hammer be smooth and polished, lest the heavy stroaks shouldmike dents in the Copper, and break it. Discontinue yonr work by turns, fotbacyon may hammer the Copper while k is hot, and prepared by the fire j and put tc